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Converting quantities into names of the same name. Unit conversion

Pascal (Pa, Pa)

Pascal (Pa, Pa) is a unit of measurement of pressure in the International System of Units (SI system). The unit is named after the French physicist and mathematician Blaise Pascal.

Pascal is equal to the pressure caused by a force equal to one newton (N) uniformly distributed over a surface of one square meter normal to it:

1 pascal (Pa) ≡ 1 N/m²

Multiples are formed using standard SI prefixes:

1 MPa (1 megapascal) = 1000 kPa (1000 kilopascals)

Atmosphere (physical, technical)

Atmosphere is an off-system unit of pressure measurement, approximately equal to atmospheric pressure on the Earth's surface at the level of the World Ocean.

There are two approximately equal units with the same name:

  1. Physical, normal or standard atmosphere (atm, atm) - exactly equal to 101,325 Pa or 760 millimeters of mercury.
  2. Technical atmosphere (at, at, kgf/cm²)- equal to the pressure produced by a force of 1 kgf, directed perpendicularly and uniformly distributed over a flat surface with an area of ​​1 cm² (98,066.5 Pa).

    1 technical atmosphere = 1 kgf/cm² (“kilogram-force per square centimeter”). // 1 kgf = 9.80665 newtons (exact) ≈ 10 N; 1 N ≈ 0.10197162 kgf ≈ 0.1 kgf

In English, kilogram-force is denoted as kgf (kilogram-force) or kp (kilopond) - kilopond, from the Latin pondus, meaning weight.

Notice the difference: not pound (in English “pound”), but pondus.

In practice, they approximately take: 1 MPa = 10 atmospheres, 1 atmosphere = 0.1 MPa.

Bar

A bar (from the Greek βάρος - heaviness) is a non-systemic unit of pressure measurement, approximately equal to one atmosphere. One bar is equal to 105 N/m² (or 0.1 MPa).

Relationships between units of pressure

1 MPa = 10 bar = 10.19716 kgf/cm² = 145.0377 PSI = 9.869233 (physical atm.) = 7500.7 mm Hg.

1 bar = 0.1 MPa = 1.019716 kgf/cm² = 14.50377 PSI = 0.986923 (physical atm.) = 750.07 mm Hg.

1 atm (technical atmosphere) = 1 kgf/cm² (1 kp/cm², 1 kilopond/cm²) = 0.0980665 MPa = 0.98066 bar = 14.223

1 atm (physical atmosphere) = 760 mm Hg = 0.101325 MPa = 1.01325 bar = 1.0333 kgf/cm²

1 mm Hg = 133.32 Pa = 13.5951 mm water column

Volumes of liquids and gases / Volume

1 gl (US) = 3.785 l

1 gl (Imperial) = 4.546 l

1 cu ft = 28.32 l = 0.0283 cubic meters

1 cu in = 16.387 cc

Flow speed

1 l/s = 60 l/min = 3.6 cubic meters/hour = 2.119 cfm

1 l/min = 0.0167 l/s = 0.06 cubic meters/hour = 0.0353 cfm

1 cubic m/hour = 16.667 l/min = 0.2777 l/s = 0.5885 cfm

1 cfm (cubic feet per minute) = 0.47195 l/s = 28.31685 l/min = 1.699011 cubic meters/hour

Throughput / Valve flow characteristics

Flow coefficient (factor) Kv

Flow Factor - Kv

The main parameter of the shut-off and control body is the flow coefficient Kv. The flow coefficient Kv shows the volume of water in cubic meters per hour (cbm/h) at a temperature of 5-30ºC passing through the valve with a pressure loss of 1 bar.

Flow coefficient Cv

Flow Coefficient - Cv

In countries with an inch measurement system, the Cv coefficient is used. It shows how much water in gallons/minute (gpm) at 60ºF flows through a fixture when there is a 1 psi pressure drop across the fixture.

Kinematic viscosity / Viscosity

1 ft = 12 in = 0.3048 m

1 in = 0.0833 ft = 0.0254 m = 25.4 mm

1 m = 3.28083 ft = 39.3699 in

Units of force

1 N = 0.102 kgf = 0.2248 lbf

1 lbf = 0.454 kgf = 4.448 N

1 kgf = 9.80665 N (exactly) ≈ 10 N; 1 N ≈ 0.10197162 kgf ≈ 0.1 kgf

In English, kilogram-force is expressed as kgf (kilogram-force) or kp (kilopond) - kilopond, from the Latin pondus, meaning weight. Please note: not pound (in English “pound”), but pondus.

Units of mass

1 lb = 16 oz = 453.59 g

Moment of force (torque)/Torque

1 kgf. m = 9.81 N. m = 7.233 lbf * ft

Power Units / Power

Some values:

Watt (W, W, 1 W = 1 J/s), horsepower (hp - Russian, hp or HP - English, CV - French, PS - German)

Unit ratio:

In Russia and some other countries 1 hp. (1 PS, 1 CV) = 75 kgf* m/s = 735.4988 W

In the USA, UK and other countries 1 hp = 550 ft*lb/s = 745.6999 W

Temperature

Fahrenheit temperature:

[°F] = [°C] × 9⁄5 + 32

[°F] = [K] × 9⁄5 − 459.67

Temperature in Celsius:

[°C] = [K] − 273.15

[°C] = ([°F] − 32) × 5⁄9

Kelvin temperature:

[K] = [°C] + 273.15

[K] = ([°F] + 459.67) × 5⁄9

Length and distance converter: meter, kilometer, centimeter, millimeter, nanometer, yard, foot, inch, parsec, light year, astronomical unit, distance from the Earth to the Moon, league, mile, nautical mile (international), fathom, fathom, cable length (international) , typographical point, pixel, caliber, Planck length...

Mass converter: gram, kilogram, milligram, ton (metric), pound, ounce, stone (US), stone (UK), carat, grain, talent (Ancient Greece), drachma (Ancient Greece), denarius (Ancient Rome ), shekel (Dr. Israel), Planck mass, proton mass, atomic mass unit, electron rest mass, Earth mass, Sun mass...

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Converter of pressure, mechanical stress, Young's modulus: pascal, kilopascal, megapascal, millipascal, micropascal, nanopascal, technical atmosphere, physical atmosphere, kilopound-force per square meter. inch, psi, newton per sq. meter, bar, millibar, kilogram-force per square meter. meter, gram-force per sq. centimeter, ton-force (kor.) per sq. ft, lbf per sq. foot, millimeter of mercury (0°C), inch of mercury (32°F), centimeter of water. column (4°C), foot of water (4°C), meter of sea water...

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Power converter: watt, kilowatt, megawatt, milliwatt, horsepower, volt-ampere, newton meter per second, joule per second, megajoule per second, kilojoule per second, millijoule per second, joule per hour, kilojoule per hour, erg per second, British thermal unit (int.) per hour, kilocalorie (int.) per hour...

Power Converter: newton, kilonewton, millinewton, dyne, joule per meter, joule per centimeter, gram-force, kilogram-force, ton-force (short), kilopound-force, kilopound-force, pound-force, ounce-force, poundal, pound-foot per second², gram-force, sten, grav-force, milligrav-force...

Time converter: second, millisecond, nanosecond, picosecond, minute, hour, day, week, month, year, decade, century, millennium, Planck time, Julian year, leap year, tropical year, sidereal year, year (Gregorian), Fortnite (14 days), 10 nanoseconds...

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Thermal efficiency and fuel efficiency converter: meter per liter, kilometer per liter, US mile per liter, nautical mile per liter, nautical mile per gallon, km per US gallon, liter per 100 km, US gallon per mile, US gallon per 100 miles, UK gallon per mile, British gallon per 100 miles...

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Sizes of women's clothing and shoes: Women's dresses, suits and sweaters, Women's shoes, Women's swimwear, Letter size, Bust, inches, Waist, inches, Low waist, inches, Hips, inches, Bust, centimeters, Waist, centimeters, Low waist waist, centimeters, hip circumference, centimeters, foot length, mm, Total arc (for swimsuits), USA, Canada, UK, Europe, Russia, Japan, France, Australia, Mexico, China, Korea...

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Mechanics

Angular velocity and rotational speed converter: radian per second, radian per day, radian per hour, radian per minute, degree per day, degree per hour, degree per minute, degree per second, revolutions per day, revolutions per hour, revolutions per minute, revolutions per second, revolutions per year, revolutions per month, revolutions per week, degrees per year, degrees per month, degrees per week, radians per year, radians per month, radians per week.

Acceleration converter: decimeter per second per second, meter per second per second, kilometer per second per second, hectometer per second per second, decameter per second per second, centimeter per second per second, millimeter per second per second, micrometer per second per second, nanometer per second per second, picometer per second per second, femtometer per second per second, attometer per second per second, gal, galileo, miles per second per second, yard per second per second, feet per second per second, inches per second per second , acceleration of free fall, acceleration of free fall on the Sun, acceleration of free fall on Mercury, acceleration of free fall on Venus, acceleration of free fall on the Moon, acceleration of free fall on Mars, acceleration of free fall on Jupiter, acceleration of free fall on Saturn...

Density converter: kilogram per cubic meter, kilogram per cubic centimeter, gram per cubic meter, gram per cubic centimeter, gram per cubic millimeter, milligram per cubic meter, milligram per cubic centimeter, milligram per cubic millimeter, exagram per liter, petagram per liter, teragram per liter, gigagram per liter, megagram per liter, kilogram per liter, hectogram per liter, decagram per liter, gram per liter, decigram per liter, centigram per liter, milligram per liter, microgram per liter, nanogram per liter, picogram per liter , femtogram per liter, attogram per liter, pound per cubic inch...

Specific Volume Converter: cubic meter per kilogram, cubic centimeter per gram, liter per kilogram, liter per gram, cubic foot per kilogram, cubic foot per pound, US gallon per pound, UK gallon per pound.

Moment of Inertia Converter: kilogram square meter, kilogram sq. centimeter, kilogram square. millimeter, gram sq. centimeter, gram square millimeter, kilogram-force meter square. second, ounce sq. inch, ounce-force inch sq. second, psi ft, lbf ft sq. second, psi inch, lbf inch sq. second, slug sq. foot.

Torque Converter: newton-meter, kilonewton-meter, millinewton-meter, micronewton-meter, ton-force (short) meter, ton-force (long)-meter, ton-force (metric)-meter, kilogram-force-meter, gram-force centimeter, pound-force foot, pound-foot, pound-inch.

Torque converter: newton meter, newton centimeter, newton millimeter, kilonewton meter, dyne meter, dyne centimeter, dyne millimeter, kilogram-force meter, kilogram-force centimeter, kilogram-force millimeter, gram-force -meter, gram-force centimeter, gram-force millimeter, ounce-force foot, ounce-force inch, pound-force foot, pound-force inch.

Thermodynamics - heat

Specific heat of combustion converter (by mass): joule per kilogram, kilocalorie per kilogram, international calorie per gram, thermochemical calorie per gram, brit. thermochemical unit (int.) per pound, imperial. thermochemical unit (therm.) per pound, kilogram per joule, kilogram per kilojoule, gram per international calorie, gram per thermochemical calorie, pound per brit. term. unit (int.), pound per brit. term. unit (therm), pound per horsepower-hour, gram per metric horsepower-hour, gram per kilowatt-hour.

Converter of energy density and specific heat of combustion of fuel (by volume): joule per cubic meter, joule per liter, megajoule per cubic meter, kilojoule per cubic meter, international kilocalorie per cubic meter. meter, thermochemical calorie per cubic meter. centimeter, therms per cubic foot, therms per gallon, brit. term. unit (int.) per cubic meter pound, British term. unit (therm.) per cubic meter pound, centigrade heat. unit per cubic pound, cubic meter per joule, liter per joule, US. gallon per horsepower-hour, US. gallon per metric hp-hour

Coefficient of Thermal Expansion Converter: relative change in length per Kelvin, relative change in length per degree Celsius, relative change in length per degree Fahrenheit, relative change in length per degree Rankine, relative change in length per degree Reaumur.

Thermal conductivity converter: watt per meter per kelvin, watt per centimeter per degree Celsius, kilowatt per meter per kelvin, calorie (int.) per second per centimeter per degree Celsius, calorie (therm.) per second per centimeter per degree Celsius, kilocalorie (int. ) per hour per meter per degree Celsius, kilocalorie (therm.) per hour per meter per degree Celsius, BTU (M) inches per second per sq. ft per deg. Fahrenheit, BTU (T) inches per second per square meter. ft per deg. Fahrenheit, BTU (M) feet per hour per square meter. ft per deg. Fahrenheit, BTU (T) feet per hour per square meter. ft per deg. Fahrenheit, BTU (M) inch per hour per sq. ft per deg. Fahrenheit, BTU (T) inch per hour per square meter. ft per deg. Fahrenheit.

Specific Heat Capacity Converter: joule per kilogram per kelvin, joule per kilogram per °C, joule per gram per °C, kilojoule per kilogram per kelvin, kilojoule per kilogram per °C, calorie (IT) per gram per °C, calorie (IT) per gram per °F, calorie (int) per gram per °C, kilocalorie (int) per kg per °C, calorie (int) per kg per °C, kilocalorie (int) per kg per kelvin, kilocalorie (therm.) per kg per kelvin, kgf-meter per kilogram per kelvin, lbf ft. per pound per °Rankine, BTU (int.) per pound per °F, BTU (therm.) per pound per °F, BTU (int.) per pound per °Rankine, BTU (int.) per pound per °Rankine, BTU (int.) per pound per °C, centigrade therm. units per pound per °C.

Heat Flux Density Converter: watt per square meter, kilowatt per square meter, watt per square centimeter, watt per square inch, joule per second per square meter. meter, kilocalorie (int.) per hour per square meter. meter, kilocalorie (int.) per hour per square meter. ft. calorie (int.) per minute per sq. centimeter, calorie (int.) per hour per square meter. centimeter, calorie (therm.) per minute per square meter. centimeter, calorie (therm.) per hour per square meter. centimeter, dyne per hour per centimeter, erg per hour per square meter. millimeter, foot-pound per minute per sq. ft, horsepower per sq. ft, horsepower (meters) per sq. ft, BTU (M) per second per sq. ft, BTU (M) per minute per sq. ft, BTU (M) per hour per sq. ft, BTU (T) per second per sq. inch, BTU (T) per second per sq. ft, BTU (T) per minute per sq. ft, BTU (T) per hour per sq. ft, centigrade thermal unit per hour per square meter. foot.

Heat transfer coefficient converter: watt per sq. meter per kelvin, watt per square meter. meter per °C, joule per second per square meter. meter per kelvin, kilocalorie (int.) per hour per square meter. meter per °C, kilocalorie (int.) per hour per sq. ft per °C, BTU (M) per second per sq. ft per °F, BTU (T) per second per sq. ft per °F, BTU (M) per hour per sq. ft per °F, BTU (T) per hour per sq. ft per °F, centigrade heat. units per hour per sq. ft per °C.

Hydraulics and hydromechanics - fluids

Volumetric flow converter: cubic meter per second, cubic meter per day, cubic meter per hour, cubic meter per minute, cubic centimeter per day, cubic centimeter per hour, cubic centimeter per minute, cubic centimeter per second, liter per day, liter per hour, liter per minute, liter per second, milliliter per day, milliliter per hour, milliliter per minute, milliliter per second, US gallon per day, US gallon per hour, US gallon per minute, US gallon per second , gallon (UK) per day, gallon (UK) per hour, gallon (UK) per minute, gallon (UK) per second, kilobarrel (US) per day, barrel (US) per day...

Mass flow converter: kilogram per second, gram per second, gram per minute, gram per hour, gram per day, milligram per minute, milligram per hour, milligram per day, kilogram per minute, kilogram per hour, kilogram per day, exagram per second, petagram per second, teragram per second, gigagram per second, megagram per second, hectogram per second, decagram per second, decigram per second, centigram per second, milligram per second, microgram per second, ton (metric) per second, ton (metric) per minute, ton (metric) per hour, ton (metric) per day...

Molar flow converter: moles per second, examoles per second, petamoles per second, teramoles per second, gigamoles per second, megamoles per second, kilomoles per second, hectomoles per second, decamoles per second, decimols per second, centimoles per second, millimoles per second, micromoles per second, nanomoles per second, picomoles per second, femtomoles per second, attomoles per second, moles per minute, moles per hour, moles per day, millimoles per minute, millimoles per hour, millimoles per day, kilomol per minute, kilomol per hour , kilomol per day.

Mass flux density converter: grams per second per sq. meter, kilogram per hour per square. meter, kilogram per hour per square. foot, kilogram per second per sq. meter, gram per second per square. centimeter, pound per hour per square meter. ft, pound per second per sq. foot.

Molar Concentration Converter: mole per meter³, mole per liter, mole per centimeter³, mole per millimeter³, kilomoles per meter³, kilomoles per liter, kilomoles per centimeter³, kilomoles per millimeter³, millimoles per meter³, millimoles per liter, millimoles per centimeter³, millimoles per millimeter³, mole per cubic meter decimeter, molar, millimolar, micromolar, nanomolar, picomolar, femtomolar, attomolar, zeptomolar, yoctomolar.

Mass Concentration Converter in Solution: kilogram per liter, gram per liter, milligram per liter, parts per million, grains per gallon (US), grains per gallon (UK), pound per gallon (US), pound per gallon (UK), millionth of a pound gallon (US), pound per million gallon (UK), pound per cubic foot, kilogram per cubic meter. meter, gram per 100 ml.

Dynamic (absolute) viscosity converter: pascal-second, kilogram-force-second. per sq. meter, newton sec. per sq. meter, millinewton-second per square. meter, dyne-second per square. centimeter, poise, exapoise, petapoise, terapoise, gigapoise, megapoise, kilopoise, hectopoise, decapoise, decipoise, centipoise, millipoise, micropoise, nanopoise, picopoise, femtopoise, attopoise, lbf-sec. per sq. inch, lbf-sec. per sq. ft, poundal second per sq. feet, grams per centimeter per second...

Kinematic Viscosity Converter: square meter per second, square meter per hour, square centimeter per second, square millimeter per second, square foot per second, square foot per hour, square inch per second, stokes, exastox, petastox, terastox, gigastoke, megastoke, kilostoke, hectostox, decastox, decystoke, centistoke, millistoke, microstoke, nanostoke, picostoke, femtostoke, attostoke.

Surface Tension Converter: newton per meter, millinewton per meter, gram-force per centimeter, dyne per centimeter, erg per square centimeter, erg per square millimeter, pound-force per inch, pound-force per inch.

Acoustics - sound

Microphone sensitivity converter: decibel relative to 1 volt per pascal, decibel relative to 1 volt per micropascal, decibel relative to 1 volt per dyne per square meter. centimeter, decibel relative to the level of 1 volt per 1 microbar, volt per pascal, millivolt per pascal, microvolt per pascal.

Sound pressure level converter with selectable reference pressure: Sound pressure level(English SPL, sound pressure level) - sound pressure value measured on a relative logarithmic scale, related to a given reference pressure (amplitude ratio).

Photometry - light

Brightness Converter: candela per square meter, candela per square centimeter, candela per square foot, candela per square inch, kilocandela per square meter, stilbe, lumens per square meter. meter per steradian, lumen per sq. centimeter per steradian, lumen per square foot not steradian, nit, millinite, lambert, millilambert, foot-lambert, apostilbe, blondel, bril, cattle.

Luminous intensity converter: candela, candle (German), candle (British), decimal candle, pentane candle, pentane candle (power 10 sv), Hefner candle, Carcel unit, decimal candle (French), lumen/steradian, candle (international).

Illuminance converter: lux, meter-candela, centimeter-candela, foot-candela, phot, knox, candela-steradian per square meter. meter, lumen per sq. meter, lumen per sq. centimeter, lumen per sq. ft, watt per sq. cm (at 555 nm).

Frequency and wavelength converter: hertz, exahertz, petahertz, terahertz, gigahertz, megahertz, kilohertz, hectohertz, dekahertz, decihertz, centihertz, millihertz, microhertz, nanohertz, picohertz, femtohertz, attohertz, cycles per second, wavelength in exameters, wavelength in petameters, length waves in terameters, wavelength in gigameters, wavelength in megameters, wavelength in kilometers, wavelength in hectometers, wavelength in decameters...

Optical power in diopters and focal length: The optical or refractive power of a lens or an optical system of several lenses or optical mirrors characterizes their refractive power and is calculated as the reciprocal of the focal length of the system. Optical power is measured in reciprocal meters in the SI system or in diopters (1 diopter = m⁻¹).

Optical power in diopters and lens magnification (×): This converter allows you to convert the optical power of a lens (magnifying glass, magnifier), expressed in diopters, into a dimensionless magnification (for example, 10×), which is usually indicated on magnifiers.

Electrical engineering

Electric charge converter: coulomb, megacoulomb, kilocoulomb, milliculomb, microcoulomb, nanocoulomb, picoculomb, abcoulomb, SGSM charge unit, statcoulomb, SGSE-charge unit, franklin, ampere-hour, milliamp-hour, ampere-minute, ampere-second, faraday (charge unit ), elementary electric charge.

Surface Charge Density Converter: pendant per square meter, pendant per square centimeter, pendant per square inch, abcoulomb per square meter, abcoulomb per sq. centimeter, abculon per sq. inch.

Volume Charge Density Converter: pendant per cubic meter, pendant per cubic centimeter, pendant per cubic inch, abcoulon per cubic meter, abcoulon per cubic meter. centimeter, abculon per cubic. inch.

Electric current converter: ampere, kiloampere, milliampere, bio, abamper, SGSM current unit, statamper, SGSE current unit, SGSM current unit, abamper, electrostat. unit of current CGS, microampere, nanoampere, Planck current.

Linear current density converter: ampere per meter, ampere per centimeter, ampere per inch, abamper per meter, abamper per centimeter, abamper per inch, oersted, gilbert/centimeter, ampere per millimeter, milliampere per meter, milliampere per decimeter, milliampere per centimeter, milliampere per millimeter , microamps per meter, microamps per decimeter, microamps per centimeter, microamps per millimeter.

Surface Current Density Converter: ampere per square meter, ampere per square centimeter, ampere per square inch, ampere per square thousandth, ampere per circular mil, ampere per square centimeter, ampere per square millimeter, milliampere per square millimeter, microampere per square millimeter, kiloampere per square millimeter , milliamps per square centimeter, microamps per square centimeter, kiloamps per square centimeter, amperes per square decimeter, milliamps per square decimeter, microamps per square decimeter, kiloamps per square decimeter.

Electric field strength converter: volt per meter, kilovolt per meter, kilovolt per centimeter, volt per centimeter, millivolt per meter, microvolt per meter, kilovolt per inch, volt per inch, volt per thousandth, abvolt per centimeter, statvolt per centimeter, statvolt per inch, newton per coulomb, volt/micron.

Electrostatic potential and voltage converter: volt, millivolt, microvolt, nanovolt, picovolt, kilovolt, megavolt, gigavolt, teravolt, watt per ampere, abvolt, electrical potential unit SGSM, statvolt, electrical potential unit SGSE, Planck voltage.

Length and distance converter: meter, kilometer, centimeter, millimeter, nanometer, yard, foot, inch, parsec, light year, astronomical unit, distance from the Earth to the Moon, league, mile, nautical mile (international), fathom, fathom, cable length (international) , typographical point, pixel, caliber, Planck length...

Mass converter: gram, kilogram, milligram, ton (metric), pound, ounce, stone (US), stone (UK), carat, grain, talent (Ancient Greece), drachma (Ancient Greece), denarius (Ancient Rome ), shekel (Dr. Israel), Planck mass, proton mass, atomic mass unit, electron rest mass, Earth mass, Sun mass...

Bulk Products and Food Volume Measures Converter: liter, dry barrel US, dry pint US, dry quart US, American pitch, British pitch, American bushel, British bushel, kor (biblical unit), homer (biblical unit), ephah (biblical unit), sata (biblical unit) , omor (biblical unit), kab (biblical unit), log (biblical unit), cubic meter.

Area converter: square millimeter, square centimeter, square meter, square kilometer, hectare, acre, square inch, square foot², square yard, square mile, barn, circular inch, township, rud, square rod, square perch, homestead, square rod, sabin , arpan, cuerda, square verst, square arshin, square foot, square fathom, Planck Square...

Volume and unit converter for recipes: cubic meter, cubic kilometer, cubic millimeter, liter, hectoliter, milliliter, drop, barrel (petroleum), American barrel, British barrel, American gallon, British gallon, US quart, British quart, US pint, British pint, barrel (petroleum) ), American barrel, British barrel, American gallon, British gallon, US quart, UK quart, US pint, UK pint, cubic yard, cubic foot, cubic inch, register ton, 100 cubic feet...

Converter of pressure, mechanical stress, Young's modulus: pascal, kilopascal, megapascal, millipascal, micropascal, nanopascal, technical atmosphere, physical atmosphere, kilopound-force per square meter. inch, psi, newton per sq. meter, bar, millibar, kilogram-force per square meter. meter, gram-force per sq. centimeter, ton-force (kor.) per sq. ft, lbf per sq. foot, millimeter of mercury (0°C), inch of mercury (32°F), centimeter of water. column (4°C), foot of water (4°C), meter of sea water...

Energy and work converter: joule, kilojoule, megajoule, millijoule, megaelectronvolt, electron-volt, erg, kilowatt-hour, megawatt-hour, newton meter, international kilocalorie, large (food) cal., brit. term. unit (int., IT), mega BTU (int., IT), ton-hour (refrigeration capacity), ton of oil equivalent, barrel of oil equivalent (US), megaton of TNT, ton of TNT, kilogram of trinitrotoluene, dyne-centimeter, gram- force-centimeter, kilogram-force-meter, kilopond-meter, pound-force-foot, ounce-force-inch, foot-pound, inch-pound, Planck energy...

Power converter: watt, kilowatt, megawatt, milliwatt, horsepower, volt-ampere, newton meter per second, joule per second, megajoule per second, kilojoule per second, millijoule per second, joule per hour, kilojoule per hour, erg per second, British thermal unit (int.) per hour, kilocalorie (int.) per hour...

Power Converter: newton, kilonewton, millinewton, dyne, joule per meter, joule per centimeter, gram-force, kilogram-force, ton-force (short), kilopound-force, kilopound-force, pound-force, ounce-force, poundal, pound-foot per second², gram-force, sten, grav-force, milligrav-force...

Time converter: second, millisecond, nanosecond, picosecond, minute, hour, day, week, month, year, decade, century, millennium, Planck time, Julian year, leap year, tropical year, sidereal year, year (Gregorian), Fortnite (14 days), 10 nanoseconds...

Linear speed converter: meter per second, kilometer per hour, kilometer per second, mile per hour, feet per second, mile per second, knot, knot (UK), speed of light in vacuum, first escape velocity, second escape velocity, third escape velocity, speed of rotation of the Earth, speed of sound in fresh water, Mach number (SI standard), Mach number (20°C, 1 atm), yards per second...

Thermal efficiency and fuel efficiency converter: meter per liter, kilometer per liter, US mile per liter, nautical mile per liter, nautical mile per gallon, km per US gallon, liter per 100 km, US gallon per mile, US gallon per 100 miles, UK gallon per mile, British gallon per 100 miles...

Converter numbers in different number systems: binary, octal, decimal, hexadecimal, radix 3, radix 4, radix 5, radix 6, radix 7, radix 9, radix 10, radix 11, radix 12, radix 13, radix 14, radix 15, radix 20, radix 21 , base 22, base 23, base 24, base 28, base 30, base 32, base 34, base 36...

Quantity of Information Converter: bit, byte, machine word, quad word, MAPM machine word, block, kibibit, kibibyte, kilobyte (10³ bytes), megabyte (10⁶ bytes), gigabyte (10⁹ bytes), terabyte (10¹² bytes), petabyte (10¹⁵ bytes), exabyte (10¹⁸ bytes), floppy (3.5, wide area), floppy (5.25, high area), Zip 250, Jaz 2GB, CD (74 minutes), DVD (2 layers, 1 side), Single layer Blu-ray Disc, Dual Layer Blu-ray Disc...

Exchange rates: Euro, US Dollar, Canadian Dollar, British Pound Sterling, Japanese Yen, Swiss Franc, Argentine Peso, Australian Dollar, Brazilian Real, Bulgarian Lev, Chilean Peso, Chinese Yuan, Czech Koruna, Danish Krone, Egyptian Pound, Hungarian Forint, Icelandic Krone, Indian Rupee, Indonesian Rupee, New Israeli Shekel, Jordanian Dinar, Malaysian Ringgit, Mexican Peso, New Zealand Dollar, Norwegian Krone, Pakistani Rupee, Philippine Peso, Romanian Leu, Russian Ruble, Saudi Riyal, Singapore Dollar, South African Rand, South Korean won, Swedish krona, New Taiwan dollar, Thai baht, Turkish lira, Ukrainian hryvnia...

Sizes of women's clothing and shoes: Women's dresses, suits and sweaters, Women's shoes, Women's swimwear, Letter size, Bust, inches, Waist, inches, Low waist, inches, Hips, inches, Bust, centimeters, Waist, centimeters, Low waist waist, centimeters, hip circumference, centimeters, foot length, mm, Total arc (for swimsuits), USA, Canada, UK, Europe, Russia, Japan, France, Australia, Mexico, China, Korea...

Sizes of men's clothing and shoes: Men's shirts, Men's trousers, Men's shoe sizes, Letter size, Neck circumference, inches, Chest circumference, inches, Sleeve length, inches, Waist circumference, inches, Neck circumference, centimeters, Chest circumference, centimeters, Sleeve length, centimeters, Girth waist, centimeters, foot length, mm, foot length, inches, USA, Canada, UK, Australia, Europe, Japan, Russia, France, Italy, Spain, China, Korea, Mexico...

Mechanics

Angular velocity and rotational speed converter: radian per second, radian per day, radian per hour, radian per minute, degree per day, degree per hour, degree per minute, degree per second, revolutions per day, revolutions per hour, revolutions per minute, revolutions per second, revolutions per year, revolutions per month, revolutions per week, degrees per year, degrees per month, degrees per week, radians per year, radians per month, radians per week.

Acceleration converter: decimeter per second per second, meter per second per second, kilometer per second per second, hectometer per second per second, decameter per second per second, centimeter per second per second, millimeter per second per second, micrometer per second per second, nanometer per second per second, picometer per second per second, femtometer per second per second, attometer per second per second, gal, galileo, miles per second per second, yard per second per second, feet per second per second, inches per second per second , acceleration of free fall, acceleration of free fall on the Sun, acceleration of free fall on Mercury, acceleration of free fall on Venus, acceleration of free fall on the Moon, acceleration of free fall on Mars, acceleration of free fall on Jupiter, acceleration of free fall on Saturn...

Density converter: kilogram per cubic meter, kilogram per cubic centimeter, gram per cubic meter, gram per cubic centimeter, gram per cubic millimeter, milligram per cubic meter, milligram per cubic centimeter, milligram per cubic millimeter, exagram per liter, petagram per liter, teragram per liter, gigagram per liter, megagram per liter, kilogram per liter, hectogram per liter, decagram per liter, gram per liter, decigram per liter, centigram per liter, milligram per liter, microgram per liter, nanogram per liter, picogram per liter , femtogram per liter, attogram per liter, pound per cubic inch...

Specific Volume Converter: cubic meter per kilogram, cubic centimeter per gram, liter per kilogram, liter per gram, cubic foot per kilogram, cubic foot per pound, US gallon per pound, UK gallon per pound.

Moment of Inertia Converter: kilogram square meter, kilogram sq. centimeter, kilogram square. millimeter, gram sq. centimeter, gram square millimeter, kilogram-force meter square. second, ounce sq. inch, ounce-force inch sq. second, psi ft, lbf ft sq. second, psi inch, lbf inch sq. second, slug sq. foot.

Torque Converter: newton-meter, kilonewton-meter, millinewton-meter, micronewton-meter, ton-force (short) meter, ton-force (long)-meter, ton-force (metric)-meter, kilogram-force-meter, gram-force centimeter, pound-force foot, pound-foot, pound-inch.

Torque converter: newton meter, newton centimeter, newton millimeter, kilonewton meter, dyne meter, dyne centimeter, dyne millimeter, kilogram-force meter, kilogram-force centimeter, kilogram-force millimeter, gram-force -meter, gram-force centimeter, gram-force millimeter, ounce-force foot, ounce-force inch, pound-force foot, pound-force inch.

Thermodynamics - heat

Specific heat of combustion converter (by mass): joule per kilogram, kilocalorie per kilogram, international calorie per gram, thermochemical calorie per gram, brit. thermochemical unit (int.) per pound, imperial. thermochemical unit (therm.) per pound, kilogram per joule, kilogram per kilojoule, gram per international calorie, gram per thermochemical calorie, pound per brit. term. unit (int.), pound per brit. term. unit (therm), pound per horsepower-hour, gram per metric horsepower-hour, gram per kilowatt-hour.

Converter of energy density and specific heat of combustion of fuel (by volume): joule per cubic meter, joule per liter, megajoule per cubic meter, kilojoule per cubic meter, international kilocalorie per cubic meter. meter, thermochemical calorie per cubic meter. centimeter, therms per cubic foot, therms per gallon, brit. term. unit (int.) per cubic meter pound, British term. unit (therm.) per cubic meter pound, centigrade heat. unit per cubic pound, cubic meter per joule, liter per joule, US. gallon per horsepower-hour, US. gallon per metric hp-hour

Coefficient of Thermal Expansion Converter: relative change in length per Kelvin, relative change in length per degree Celsius, relative change in length per degree Fahrenheit, relative change in length per degree Rankine, relative change in length per degree Reaumur.

Thermal conductivity converter: watt per meter per kelvin, watt per centimeter per degree Celsius, kilowatt per meter per kelvin, calorie (int.) per second per centimeter per degree Celsius, calorie (therm.) per second per centimeter per degree Celsius, kilocalorie (int. ) per hour per meter per degree Celsius, kilocalorie (therm.) per hour per meter per degree Celsius, BTU (M) inches per second per sq. ft per deg. Fahrenheit, BTU (T) inches per second per square meter. ft per deg. Fahrenheit, BTU (M) feet per hour per square meter. ft per deg. Fahrenheit, BTU (T) feet per hour per square meter. ft per deg. Fahrenheit, BTU (M) inch per hour per sq. ft per deg. Fahrenheit, BTU (T) inch per hour per square meter. ft per deg. Fahrenheit.

Specific Heat Capacity Converter: joule per kilogram per kelvin, joule per kilogram per °C, joule per gram per °C, kilojoule per kilogram per kelvin, kilojoule per kilogram per °C, calorie (IT) per gram per °C, calorie (IT) per gram per °F, calorie (int) per gram per °C, kilocalorie (int) per kg per °C, calorie (int) per kg per °C, kilocalorie (int) per kg per kelvin, kilocalorie (therm.) per kg per kelvin, kgf-meter per kilogram per kelvin, lbf ft. per pound per °Rankine, BTU (int.) per pound per °F, BTU (therm.) per pound per °F, BTU (int.) per pound per °Rankine, BTU (int.) per pound per °Rankine, BTU (int.) per pound per °C, centigrade therm. units per pound per °C.

Heat Flux Density Converter: watt per square meter, kilowatt per square meter, watt per square centimeter, watt per square inch, joule per second per square meter. meter, kilocalorie (int.) per hour per square meter. meter, kilocalorie (int.) per hour per square meter. ft. calorie (int.) per minute per sq. centimeter, calorie (int.) per hour per square meter. centimeter, calorie (therm.) per minute per square meter. centimeter, calorie (therm.) per hour per square meter. centimeter, dyne per hour per centimeter, erg per hour per square meter. millimeter, foot-pound per minute per sq. ft, horsepower per sq. ft, horsepower (meters) per sq. ft, BTU (M) per second per sq. ft, BTU (M) per minute per sq. ft, BTU (M) per hour per sq. ft, BTU (T) per second per sq. inch, BTU (T) per second per sq. ft, BTU (T) per minute per sq. ft, BTU (T) per hour per sq. ft, centigrade thermal unit per hour per square meter. foot.

Heat transfer coefficient converter: watt per sq. meter per kelvin, watt per square meter. meter per °C, joule per second per square meter. meter per kelvin, kilocalorie (int.) per hour per square meter. meter per °C, kilocalorie (int.) per hour per sq. ft per °C, BTU (M) per second per sq. ft per °F, BTU (T) per second per sq. ft per °F, BTU (M) per hour per sq. ft per °F, BTU (T) per hour per sq. ft per °F, centigrade heat. units per hour per sq. ft per °C.

Hydraulics and hydromechanics - fluids

Volumetric flow converter: cubic meter per second, cubic meter per day, cubic meter per hour, cubic meter per minute, cubic centimeter per day, cubic centimeter per hour, cubic centimeter per minute, cubic centimeter per second, liter per day, liter per hour, liter per minute, liter per second, milliliter per day, milliliter per hour, milliliter per minute, milliliter per second, US gallon per day, US gallon per hour, US gallon per minute, US gallon per second , gallon (UK) per day, gallon (UK) per hour, gallon (UK) per minute, gallon (UK) per second, kilobarrel (US) per day, barrel (US) per day...

Mass flow converter: kilogram per second, gram per second, gram per minute, gram per hour, gram per day, milligram per minute, milligram per hour, milligram per day, kilogram per minute, kilogram per hour, kilogram per day, exagram per second, petagram per second, teragram per second, gigagram per second, megagram per second, hectogram per second, decagram per second, decigram per second, centigram per second, milligram per second, microgram per second, ton (metric) per second, ton (metric) per minute, ton (metric) per hour, ton (metric) per day...

Molar flow converter: moles per second, examoles per second, petamoles per second, teramoles per second, gigamoles per second, megamoles per second, kilomoles per second, hectomoles per second, decamoles per second, decimols per second, centimoles per second, millimoles per second, micromoles per second, nanomoles per second, picomoles per second, femtomoles per second, attomoles per second, moles per minute, moles per hour, moles per day, millimoles per minute, millimoles per hour, millimoles per day, kilomol per minute, kilomol per hour , kilomol per day.

Mass flux density converter: grams per second per sq. meter, kilogram per hour per square. meter, kilogram per hour per square. foot, kilogram per second per sq. meter, gram per second per square. centimeter, pound per hour per square meter. ft, pound per second per sq. foot.

Molar Concentration Converter: mole per meter³, mole per liter, mole per centimeter³, mole per millimeter³, kilomoles per meter³, kilomoles per liter, kilomoles per centimeter³, kilomoles per millimeter³, millimoles per meter³, millimoles per liter, millimoles per centimeter³, millimoles per millimeter³, mole per cubic meter decimeter, molar, millimolar, micromolar, nanomolar, picomolar, femtomolar, attomolar, zeptomolar, yoctomolar.

Mass Concentration Converter in Solution: kilogram per liter, gram per liter, milligram per liter, parts per million, grains per gallon (US), grains per gallon (UK), pound per gallon (US), pound per gallon (UK), millionth of a pound gallon (US), pound per million gallon (UK), pound per cubic foot, kilogram per cubic meter. meter, gram per 100 ml.

Dynamic (absolute) viscosity converter: pascal-second, kilogram-force-second. per sq. meter, newton sec. per sq. meter, millinewton-second per square. meter, dyne-second per square. centimeter, poise, exapoise, petapoise, terapoise, gigapoise, megapoise, kilopoise, hectopoise, decapoise, decipoise, centipoise, millipoise, micropoise, nanopoise, picopoise, femtopoise, attopoise, lbf-sec. per sq. inch, lbf-sec. per sq. ft, poundal second per sq. feet, grams per centimeter per second...

Kinematic Viscosity Converter: square meter per second, square meter per hour, square centimeter per second, square millimeter per second, square foot per second, square foot per hour, square inch per second, stokes, exastox, petastox, terastox, gigastoke, megastoke, kilostoke, hectostox, decastox, decystoke, centistoke, millistoke, microstoke, nanostoke, picostoke, femtostoke, attostoke.

Surface Tension Converter: newton per meter, millinewton per meter, gram-force per centimeter, dyne per centimeter, erg per square centimeter, erg per square millimeter, pound-force per inch, pound-force per inch.

Acoustics - sound

Microphone sensitivity converter: decibel relative to 1 volt per pascal, decibel relative to 1 volt per micropascal, decibel relative to 1 volt per dyne per square meter. centimeter, decibel relative to the level of 1 volt per 1 microbar, volt per pascal, millivolt per pascal, microvolt per pascal.

Sound pressure level converter with selectable reference pressure: Sound pressure level(English SPL, sound pressure level) - sound pressure value measured on a relative logarithmic scale, related to a given reference pressure (amplitude ratio).

Photometry - light

Brightness Converter: candela per square meter, candela per square centimeter, candela per square foot, candela per square inch, kilocandela per square meter, stilbe, lumens per square meter. meter per steradian, lumen per sq. centimeter per steradian, lumen per square foot not steradian, nit, millinite, lambert, millilambert, foot-lambert, apostilbe, blondel, bril, cattle.

Luminous intensity converter: candela, candle (German), candle (British), decimal candle, pentane candle, pentane candle (power 10 sv), Hefner candle, Carcel unit, decimal candle (French), lumen/steradian, candle (international).

Illuminance converter: lux, meter-candela, centimeter-candela, foot-candela, phot, knox, candela-steradian per square meter. meter, lumen per sq. meter, lumen per sq. centimeter, lumen per sq. ft, watt per sq. cm (at 555 nm).

Frequency and wavelength converter: hertz, exahertz, petahertz, terahertz, gigahertz, megahertz, kilohertz, hectohertz, dekahertz, decihertz, centihertz, millihertz, microhertz, nanohertz, picohertz, femtohertz, attohertz, cycles per second, wavelength in exameters, wavelength in petameters, length waves in terameters, wavelength in gigameters, wavelength in megameters, wavelength in kilometers, wavelength in hectometers, wavelength in decameters...

Optical power in diopters and focal length: The optical or refractive power of a lens or an optical system of several lenses or optical mirrors characterizes their refractive power and is calculated as the reciprocal of the focal length of the system. Optical power is measured in reciprocal meters in the SI system or in diopters (1 diopter = m⁻¹).

Optical power in diopters and lens magnification (×): This converter allows you to convert the optical power of a lens (magnifying glass, magnifier), expressed in diopters, into a dimensionless magnification (for example, 10×), which is usually indicated on magnifiers.

Electrical engineering

Electric charge converter: coulomb, megacoulomb, kilocoulomb, milliculomb, microcoulomb, nanocoulomb, picoculomb, abcoulomb, SGSM charge unit, statcoulomb, SGSE-charge unit, franklin, ampere-hour, milliamp-hour, ampere-minute, ampere-second, faraday (charge unit ), elementary electric charge.

Surface Charge Density Converter: pendant per square meter, pendant per square centimeter, pendant per square inch, abcoulomb per square meter, abcoulomb per sq. centimeter, abculon per sq. inch.

Volume Charge Density Converter: pendant per cubic meter, pendant per cubic centimeter, pendant per cubic inch, abcoulon per cubic meter, abcoulon per cubic meter. centimeter, abculon per cubic. inch.

Electric current converter: ampere, kiloampere, milliampere, bio, abamper, SGSM current unit, statamper, SGSE current unit, SGSM current unit, abamper, electrostat. unit of current CGS, microampere, nanoampere, Planck current.

Linear current density converter: ampere per meter, ampere per centimeter, ampere per inch, abamper per meter, abamper per centimeter, abamper per inch, oersted, gilbert/centimeter, ampere per millimeter, milliampere per meter, milliampere per decimeter, milliampere per centimeter, milliampere per millimeter , microamps per meter, microamps per decimeter, microamps per centimeter, microamps per millimeter.

Surface Current Density Converter: ampere per square meter, ampere per square centimeter, ampere per square inch, ampere per square thousandth, ampere per circular mil, ampere per square centimeter, ampere per square millimeter, milliampere per square millimeter, microampere per square millimeter, kiloampere per square millimeter , milliamps per square centimeter, microamps per square centimeter, kiloamps per square centimeter, amperes per square decimeter, milliamps per square decimeter, microamps per square decimeter, kiloamps per square decimeter.

Electric field strength converter: volt per meter, kilovolt per meter, kilovolt per centimeter, volt per centimeter, millivolt per meter, microvolt per meter, kilovolt per inch, volt per inch, volt per thousandth, abvolt per centimeter, statvolt per centimeter, statvolt per inch, newton per coulomb, volt/micron.

Electrostatic potential and voltage converter: volt, millivolt, microvolt, nanovolt, picovolt, kilovolt, megavolt, gigavolt, teravolt, watt per ampere, abvolt, electrical potential unit SGSM, statvolt, electrical potential unit SGSE, Planck voltage.

Please use a period, not a comma, to separate tenths!

The physical units converter allows you to convert most basic units of physical quantities into each other. To convert, first select the value you would like to convert. Then select the original unit of measurement and the unit of measurement to which you want to convert. Now, if you enter a unit of measurement value, its value in the required unit of measurement will automatically appear in the “Result” field.

Converter capabilities

The converter of units of measurement of physical quantities allows you to convert units of measurement of the following physical quantities into each other: length, mass, temperature, volume, area, speed, time, pressure, energy and work, angular measures.

Units

Length: millimeter, centimeter, decimeter, meter, kilometer, foot, inch, league, nautical mile, microinch, mile, yard.

Weight: microgram, milligram, centigram, decigram, gram, decagram, hectogram, kilogram, hundredweight, tonne, pound, ounce, drachma, grain, hundredweight (England), hundredweight (USA), tonne (England), tonne (USA).

Temperature: degrees Celsius (ºC), degrees Fahrenheit (ºF), degrees Rankine (ºRa), degrees Reaumur, Kelvin.

Volume: cubic micrometer, cubic millimeter, cubic centimeter, cubic decimeter, cubic meter, cubic decameter, cubic kilometer, microliter, milliliter, centiliter, deciliter, hectoliter, liter, kiloliter, megaliter, acrefoot, acrefoot (USA), barrel (England), barrel (USA dry), barrel (USA liquid), barrel (USA oil), bords fct, bucket (England), bucket (USA), bushel (England), bushel (USA dry), cord (firewood), cord foot (wood) ), cubic cubit (Egypt), cubic foot, cubic inch, cubic mile, cubic yard, drachm, quint, gallon (England), gallon (US dry), gallon (US liquid), hogshead (England), hogshead (US) , ounce (UK fluid), ounce (US fluid), pint (UK), pint (US dry), pint (US fluid), quart (UK), quart (US dry), quart (US fluid), cubic yard.

Square: square millimeter (mm2, mm2), square centimeter (cm2, cm2), square meter (m2, m2), square kilometer (km2, km2), hectare (Ha), decare, are (weave, a, lie), barn ( b, b), township, square mile, homestead, acre, ore, square rod, square yard (yd2), square foot (ft2), square inch (in2), square verst, square arshin.

Speed: kilometer per second (km/s, km/s), meter per second (m/s, m/s), kilometer per hour (km/h), meter per minute, mile per second, mile per hour (mph), feet per second, feet per minute, knots, nautical miles per hour, speed of light in a vacuum.

Time: century, year, month, week, day, hour, minute, second.

Pressure: bar, kilopascal (kPa, kPa), hectopascal (hPa, hPa), megapascal (mPa, mPa), millibar, pascal (Pa, Pa), kilogram force per square meter (kgf/m2), newton per square meter (n/ m2), pound per square inch (psi), pound per square foot, inch of mercury, millimeter of mercury, centimeter of mercury, physical atmosphere (atm, atm), technical atmosphere (atm).

Energy, work: megajoule (mJ, mJ), kilojoule (kJ, kJ), joule (J, J), kilocalorie (kcal), calorie (cal), kilowatt/hour (kW*h, kW*hour), watt/hour (W* h, W*hour), electronvolt (eV), kilogram of TNT.

Angular measure: circle (circle), sextant, radian (rad), degree (deg), grad (grad), minute ("), second ("), rumb.

In the exact sciences, fractional and multiple decimal prefixes are used to name units of measurement. Regardless of the type of physical quantity, the mathematical meaning of prefixes is constant. The most common prefixes:

1. Units of length

The unit of length in the SI system of units is METER.

When solving physical problems, the values ​​of physical quantities presented in other units must be converted to SI units, i.e. in meters.

Unit name Relation to SI units Translation rule
Kilometer 1 km = 1000 m thousand meters
Decimeter 1 dm = 0.1 m One tenth of a meter Move the decimal point 1 place to the left
Centimeter 1 cm = 0.01 m One hundredth of a meter
Millimeter 1 mm = 0.001 m One thousandth of a meter
Micrometer ("micron") 1 µm = 0.000001 m One millionth of a meter
Nanometer 1 nm = 0.000000001 m One billionth of a meter

Examples of translations:

5 km = 5000 m 674 km = 674000 m 1.76 km = 1760 m 0.06 km = 60 m 7 dm = 0.7 m 600 dm = 60 m 13.52 dm = 1.352 m 0.004 dm = 0.0004 m 3 cm = 0.03 m 565 cm = 5.65 m 6.6 cm = 0.066 m 0.0005 cm = 0.000005 m
8 mm = 0.008 m 78 mm = 0.078 m 7.87 mm = 0.00787 m 0.125 mm = 0.000125 m 9 µm = 0.000009 m 956 µm = 0.000956 m 7.65 µm = 0.00000765 m 0.45 µm = 0.00000045 m 2 nm = 0.000000002 m 65 nm = 0.000000065 m 65.5 nm = 0.0000000655 m 0.012 nm = 0.000000000012 m

2. Units of mass


The unit of mass in the SI system of units is the KILOGRAM.

When solving physical problems, the values ​​of physical quantities presented in other units must be converted to SI units, i.e. in kilograms.

Unit name Relation to SI units Fraction of basic unit or number of basic units Translation rule
Ton 1 t = 1000 kg A thousand kilograms Move the decimal point 3 places to the right (adding three zeros to the right of a whole number)
Centner 1 c = 100 kg One hundred kilograms Move the decimal point 2 places to the right (adding two zeros to the right of a whole number)
Gram 1 g = 0.001 kg One hundredth of a kilogram Move the decimal point 3 places to the left
Milligram 1 mg = 0.000001 kg One millionth of a kilogram Move the decimal point 6 places to the left
Microgram 1 µg = 0.000000001 kg One billionth of a kilogram Move the decimal point 9 places to the left

Examples of translations:

6 t = 6000 kg 75 t = 75000 kg 8.6 t = 8600 kg 0.095 t = 95 kg 3 cwt = 300 kg 674 cwt = 67400 kg 65.9 cwt = 6590 kg 0.098 cwt = 9.8 kg 6 g = 0.006 kg 345 g = 0.345 kg 67.8 g = 0.0678 kg 0.23 g = 0.00023 kg
2 mg = 0.000002 kg 5678 mg = 0.005678 kg 56.7 mg = 0.0000567 kg 0.02 mg = 0.00000002 kg 5 µg = 0.000000005 kg 578.9 µg = 0.0000005789 kg 1.06 µg = 0.00000000106 kg 0.044 µg = 0.000000000044 kg

3. Time units

The unit of length in the SI system of units is the SECOND.

When solving physical problems, the values ​​of physical quantities presented in other units must be converted to SI units, i.e. in seconds.

Unit name Relation to SI units Explanation of ratios Translation rule
Microsecond 1 µs = 0.000001 s One millionth of a second Move the decimal point 6 places to the left
Millisecond 1 ms = 0.001 s One thousandth of a second Move the decimal point 3 places to the left
Minute 1 min. = 60 s Multiply by 60
Hour 1 hour = 3600 s 1 hour = 60 minutes = 60 × 60 s = 3600 s Multiply by 3600
Day 1 day = 86400 s 1 day = 24 hours = 24 × 3600 s = 86400 s Multiplying by 24 and then by 3600
A week 1 week = 604800 s 1 week = 7 days = 7 × 24 hours = 168 hours = 168 × 3600 s = 604800 s Multiplying by 7, then by 24, and then by 3600
Month 1 month = 2592000 s 1 month = 30 days. = 30 × 24 hours = 720 hours = 720 × 3600 s = 2592000 s Multiplying by 30, then by 24, and then by 3600
Year 1 year = 31536000 s 1 year = 365 days. = 365 × 24 hours = 8760 hours = 8760 × 3600 s = 31536000 s Multiply by 365, then by 24, and then by 3600

You only need to know by heart that:

1) 1 minute = 60 seconds

2) 1 hour = 60 minutes = 3600 seconds

3) 1 day = 24 hours

4) 1 week = 7 days

5) 1 month = 30 days

6) 1 year = 365 days

The length of the month and year are considered “standard”. However, if when solving a problem the name of a specific month is indicated, then when translating you need to take into account the real number of days: 28, 29, 30 or 31. The same applies to a leap year.

Examples of translations:

65 µs = 0.000065 s 4.06 µs = 0.00000406 s 0.08 µs = 0.00000008 s 10 min. = 10 × 60 s = 600 s 45 min. = 45 × 60 s = 2700 s 0.7 min. = 0.7 × 60 = 42 s 6 days = 6 × 24 × 3600 s = 518400 s 0.65 days. = 0.65 × 24 × 3600 s = 56160 s 25 weeks. = 25 × 7 × 24 × 3600 s = 15,120,000 s 0.85 weeks. = 0.85 × 7 × 24 × 3600 s = 514080 s 5 months. = 5 × 30 × 24 × 3600 s = 12960000 s 0.34 months. = 0.34 × 30 × 24 × 3600 s = 881280 s 3 years = 3 × 365 × 24 × 3600 s = 94608000 s 0.76 years = 0.76 × 365 × 24 × 3600 s = 23967360 s
3 ms = 0.003 s 345 ms = 0.345 s 77.9 ms = 0.0779 s 0.00478 ms = 0.00000478 s 3 hours = 3 × 3600 s = 10800 s 25.3 hours = 25.3 × 3600 s = 91080 s 0.25 hours = 0.25 × 3600 s = 900 s 20.07 hours = 20.07 × 3600 s = 72252 s

4. Area units

The unit of area in the SI system of units is the SQUARE METER.

When solving physical problems, the values ​​of physical quantities presented in other units must be converted to SI units, i.e. in square meters.

The relationship between square and linear units is easy to establish:

1 km 2 = 1 km × 1 km = 1000 m × 1000 m = 1000000 m 2.

1 dm 2 = 1 dm × 1 dm = 0.1 m × 0.1 m = 0.01 m 2.

1 cm 2 = 1 cm × 1 cm = 0.01 m × 0.01 m = 0.0001 m 2.

1 mm 2 = 1 mm × 1 mm = 0.001 m × 0.001 m = 0.000001 m 2.

Unit name Relation to SI units Fraction of basic unit or number of basic units Translation rule
Square kilometer 1 km 2 = 1000000 m 2 Million square meters Move the decimal point 6 places to the right (adding six zeros to the right of a whole number)
Square decimeter 1 dm 2 = 0.01 m 2 One hundredth of a square meter Move the decimal point 2 places to the left
Square centimeter 1 cm 2 = 0.0001 m 2 One ten-thousandth of a square meter Move the decimal point 4 places to the left
Square millimeter 1 mm 2 = 0.000001 m 2 One millionth of a square meter Move the decimal point 6 places to the left

Examples of translations:

5 km 2 = 5,000,000 m 2 674 km 2 = 674,000,000 m 2 1. 76 km 2 = 1,760,000 m 2 0.06 km 2 = 60,000 m 2 7 dm 2 = 0.07 m 2 600 dm 2 = 6 m 2 13.52 dm 2 = 0.1352 m 2 0.004 dm 2 = 0.00004 m 2 3 cm 2 = 0.0003 m 2 565 cm 2 = 0.0565 m 2 6.6 cm 2 = 0.00066 m 2 0.0005 cm 2 = 0.00000005 m 2 8 mm 2 = 0.000008 m 2 78 mm 2 = 0.000078 m 2 7.87 mm 2 = 0.00000787 m 2 0.125 mm 2 = 0.000000125 m 2

5. Volume units

The unit of volume in the SI system of units is the CUBIC METER.

When solving physical problems, the values ​​of physical quantities presented in other units must be converted to SI units, i.e. in cubic meters.

The relationship between cubic and linear units is easy to establish:

1 km 3 = 1 km × 1 km × 1 km = 1000 m × 1000 m × 1000 m = 1000000000 m 3.

1 dm 3 = 1 dm × 1 dm × 1 dm = 0.1 m × 0.1 m × 0.1 m = 0.001 m 3.

1 cm 3 = 1 cm × 1 cm × 1 cm = 0.01 m × 0.01 m × 0.01 m = 0.000001 m 3.

1 mm 3 = 1 mm × 1 mm × 1 mm = 0.001 m × 0.001 m × 0.001 m = 0.000000001 m 3.

Liters (l) and milliliters (ml) are also often used in everyday life:

1 l = 1 dm 3 = 0.001 m 3.

1 ml = 0.001 l = 0.000001 m3.

This shows that 1 ml = 1 cm3, which is why in medicine it is often called a “cube”.

Unit name Relation to SI units Fraction of basic unit or number of basic units Translation rule
Cubic kilometer 1 km 3 = 1000000000 m 3 Billion cubic meters Move the decimal point 9 places to the right (adding nine zeros from the right to the whole number)
Cubic decimeter 1 dm 3 = 0.001 m 3 Move the decimal point 3 places to the left
Cubic centimeter 1 cm 3 = 0.000001 m 3 Move the decimal point 6 places to the left
Cubic millimeter 1 mm 3 = 0.000000001 m 3 One billionth of a cubic meter Move the decimal point 9 places to the left
Liter 1 l = 0.001 m 3 One thousandth of a cubic meter Move the decimal point 3 places to the left
Milliliter 1 ml = 0.000001 m3 One millionth of a cubic meter Move the decimal point 6 places to the left

Examples of translations:

6. Speed ​​units

The unit of speed (movement) in the SI system of units is METERS PER SECOND.

When solving physical problems, the values ​​of physical quantities presented in other units must be converted to SI units, i.e. in meters per second.

In everyday life, kilometers per hour (km/h) are often used. Converting such values ​​to SI units (m/s) requires converting length units and converting time units. Knowing that 1 km = 1000 m, and 1 second is 3600 times shorter than 1 hour, i.e. 1 s = h, then.