Calculation paths

Formulas for every conversion

Every one of the 292 maintained conversions with its formula, base unit and calculation path. The search filters across all 23 unit families.

Length

Length

value * fromFactor / toFactor

Table
Length
ConversionFormulaBase unitMethod
Inch to Centimetre1 in = 2.54 cmmFactor
Centimetre to Inch1 cm = 0.3937007874 inmFactor
Foot to Metre1 ft = 0.3048 mmFactor
Metre to Foot1 m = 3.280839895 ftmFactor
Mile to Kilometre1 mi = 1.609344 kmmFactor
Kilometre to Mile1 km = 0.6213711922 mimFactor
Nautical mile to Kilometre1 nmi = 1.852 kmmFactor
Millimetre to Centimetre1 mm = 0.1 cmmFactor
Centimetre to Millimetre1 cm = 10 mmmFactor
Metre to Centimetre1 m = 100 cmmFactor
Centimetre to Metre1 cm = 0.01 mmFactor
Kilometre to Metre1 km = 1000 mmFactor
Metre to Kilometre1 m = 0.001 kmmFactor
Millimetre to Inch1 mm = 0.0393700787402 inmFactor
Inch to Millimetre1 in = 25.4 mmmFactor
Foot to Centimetre1 ft = 30.48 cmmFactor
Centimetre to Foot1 cm = 0.0328083989501 ftmFactor
Inch to Foot1 in = 0.0833333333333 ftmFactor
Foot to Inch1 ft = 12 inmFactor
Metre to Yard1 m = 1.09361329834 ydmFactor
Yard to Metre1 yd = 0.9144 mmFactor
Kilometre to Nautical mile1 km = 0.539956803456 nmimFactor
Mile to Nautical mile1 mi = 0.868976241901 nmimFactor
Inch to Metre1 in = 0.0254 mmFactor
Metre to Inch1 m = 39.3700787402 inmFactor
Light-year to Kilometre1 Lj = 9.46073047258e12 kmmFactor
Kilometre to Light-year1 km = 1.0570008340246155e-13 LjmFactor
Astronomical unit to Kilometre1 AE = 149597870.7 kmmFactor
Kilometre to Astronomical unit1 km = 6.684587122268446e-9 AEmFactor
Parsec to Light-year1 pc = 3.26156377717 LjmFactor
Light-year to Parsec1 Lj = 0.306601393786 pcmFactor
Light-second to Kilometre1 ls = 299792.458 kmmFactor

Area

Area

value * fromFactor / toFactor

Table
Area
ConversionFormulaBase unitMethod
Hectare to Square metre1 ha = 10,000 m²m²Factor
Square metre to Hectare1 m² = 0.0001 ham²Factor
Acre to Square metre1 acre = 4,046.8564224 m²m²Factor
Square metre to Square centimetre1 m² = 10000 cm²m²Factor
Square centimetre to Square metre1 cm² = 0.0001 m²m²Factor
Square metre to Square millimetre1 m² = 1000000 mm²m²Factor
Square millimetre to Square metre1 mm² = 1e-6 m²m²Factor
Square foot to Square metre1 ft² = 0.09290304 m²m²Factor
Square metre to Square foot1 m² = 10.7639104167 ft²m²Factor
Square inch to Square centimetre1 in² = 6.4516 cm²m²Factor
Are to Square metre1 a = 100 m²m²Factor
Square metre to Are1 m² = 0.01 am²Factor
Acre to Hectare1 acre = 0.40468564224 ham²Factor
Hectare to Acre1 ha = 2.47105381467 acrem²Factor
Square mile to Square kilometre1 mi² = 2.58998811034 km²m²Factor
Square yard to Square metre1 yd² = 0.83612736 m²m²Factor

Volume

Volume

value * fromFactor / toFactor

Table
Volume
ConversionFormulaBase unitMethod
Litre to US gallon1 l = 0.2641720524 gallFactor
US gallon to Litre1 gal = 3.785411784 llFactor
Millilitre to Cup1 ml = 0.0042267528 cuplFactor
Cup to Millilitre1 cup = 236.5882365 mllFactor
Litre to Millilitre1 l = 1000 mllFactor
Millilitre to Litre1 ml = 0.001 llFactor
Litre to Cubic metre1 l = 0.001 m³lFactor
Cubic metre to Litre1 m³ = 1000 llFactor
Litre to Hectolitre1 l = 0.01 hllFactor
Hectolitre to Litre1 hl = 100 llFactor
Oil barrel to Litre1 bbl = 158.987294928 llFactor
Litre to Oil barrel1 l = 0.00628981077043 bbllFactor
Teaspoon to Millilitre1 tsp = 4.92892159 mllFactor
Millilitre to Teaspoon1 ml = 0.202884136365 tsplFactor
Tablespoon to Millilitre1 tbsp = 14.7867648 mllFactor
Millilitre to Tablespoon1 ml = 0.0676280453179 tbsplFactor
Fluid ounce to Millilitre1 fl oz = 29.5735296 mllFactor
Millilitre to Fluid ounce1 ml = 0.033814022659 fl ozlFactor
Centilitre to Millilitre1 cl = 10 mllFactor

Mass

Mass

value * fromFactor / toFactor

Table
Mass
ConversionFormulaBase unitMethod
Pound to Kilogram1 lb = 0.45359237 kggFactor
Kilogram to Pound1 kg = 2.2046226218 lbgFactor
Ounce to Gram1 oz = 28.349523125 ggFactor
Gram to Ounce1 g = 0.0352739619 ozgFactor
Gram to Kilogram1 g = 0.001 kggFactor
Kilogram to Gram1 kg = 1000 ggFactor
Tonne to Kilogram1 t = 1000 kggFactor
Kilogram to Tonne1 kg = 0.001 tgFactor
Stone to Kilogram1 st = 6.35029318 kggFactor
Kilogram to Stone1 kg = 0.157473044418 stgFactor
Pound to Ounce1 lb = 16 ozgFactor
Ounce to Pound1 oz = 0.0625 lbgFactor
Carat to Gram1 ct = 0.2 ggFactor
Gram to Carat1 g = 5 ctgFactor
Milligram to Gram1 mg = 0.001 ggFactor
Gram to Milligram1 g = 1000 mggFactor

Temperature

Temperature

offset via Celsius base

Table
Temperature
ConversionFormulaBase unitMethod
Fahrenheit to CelsiusOffset formula°COffset
Celsius to FahrenheitOffset formula°COffset
Kelvin to CelsiusOffset formula°COffset
Celsius to KelvinOffset formula°COffset
Fahrenheit to KelvinOffset formula°COffset
Kelvin to FahrenheitOffset formula°COffset
Rankine to CelsiusOffset formula°COffset
Celsius to RankineOffset formula°COffset
Rankine to KelvinOffset formula°COffset

Data

Data

value * fromFactor / toFactor

Table
Data
ConversionFormulaBase unitMethod
Gigabyte to Gibibyte1 GB = 0.9313225746 GiBByteFactor
Gibibyte to Gigabyte1 GiB = 1.073741824 GBByteFactor
Mebibyte to Megabyte1 MiB = 1.048576 MBByteFactor
Megabyte to Mebibyte1 MB = 0.9536743164 MiBByteFactor
Bit to Byte1 bit = 0.125 BByteFactor
Terabyte to Tebibyte1 TB = 0.9094947018 TiBByteFactor
Kilobyte to Megabyte1 KB = 0.001 MBByteFactor
Megabyte to Gigabyte1 MB = 0.001 GBByteFactor
Gigabyte to Terabyte1 GB = 0.001 TBByteFactor
Terabyte to Gigabyte1 TB = 1000 GBByteFactor
Gigabyte to Petabyte1 GB = 1e-6 PBByteFactor
Petabyte to Gigabyte1 PB = 1000000 GBByteFactor
Kilobyte to Kibibyte1 KB = 0.9765625 KiBByteFactor
Kibibyte to Kilobyte1 KiB = 1.024 KBByteFactor
Megabyte to Gibibyte1 MB = 0.000931322574615 GiBByteFactor
Gibibyte to Megabyte1 GiB = 1073.741824 MBByteFactor
Byte to Bit1 B = 8 bitByteFactor
Byte to Kilobyte1 B = 0.001 KBByteFactor
Kilobyte to Byte1 KB = 1000 BByteFactor

Speed

Speed

value * fromFactor / toFactor

Table
Speed
ConversionFormulaBase unitMethod
Knot to Kilometres per hour1 kn = 1.852 km/hm/sFactor
Kilometres per hour to Knot1 km/h = 0.5399568035 knm/sFactor
Miles per hour to Kilometres per hour1 mph = 1.609344 km/hm/sFactor
Kilometres per hour to Miles per hour1 km/h = 0.6213711922 mphm/sFactor
Metres per second to Kilometres per hour1 m/s = 3.6 km/hm/sFactor
Kilometres per hour to Metres per second1 km/h = 0.277777777778 m/sm/sFactor
Metres per second to Miles per hour1 m/s = 2.23693629205 mphm/sFactor
Miles per hour to Metres per second1 mph = 0.44704 m/sm/sFactor
Miles per hour to Knot1 mph = 0.868976241901 knm/sFactor
Knot to Miles per hour1 kn = 1.15077944802 mphm/sFactor
Kilometres per hour to Foot per second1 km/h = 0.911344415281 ft/sm/sFactor
Foot per second to Kilometres per hour1 ft/s = 1.09728 km/hm/sFactor
Knot to Foot per second1 kn = 1.6878098571 ft/sm/sFactor
Speed of light to Kilometres per hour1 c = 1079252848.8 km/hm/sFactor
Kilometres per hour to Speed of light1 km/h = 9.265669311059779e-10 cm/sFactor

Energy

Energy

value * fromFactor / toFactor

Table
Energy
ConversionFormulaBase unitMethod
Kilowatt-hour to Joule1 kWh = 3,600,000 JJFactor
Joule to Kilowatt-hour1 J = 0.0000002778 kWhJFactor
Kilocalorie to Kilojoule1 kcal = 4.184 kJJFactor
Kilojoule to Kilocalorie1 kJ = 0.2390057361 kcalJFactor
British thermal unit to Kilowatt-hour1 BTU = 0.0002930711 kWhJFactor
Kilowatt-hour to Kilocalorie1 kWh = 860.420650096 kcalJFactor
Kilocalorie to Kilowatt-hour1 kcal = 0.00116222222222 kWhJFactor
Joule to Kilojoule1 J = 0.001 kJJFactor
Kilojoule to Joule1 kJ = 1000 JJFactor
Watt-hour to Kilowatt-hour1 Wh = 0.001 kWhJFactor
Kilowatt-hour to Watt-hour1 kWh = 1000 WhJFactor
Megawatt hour to Kilowatt-hour1 MWh = 1000 kWhJFactor
Kilowatt-hour to Megawatt hour1 kWh = 0.001 MWhJFactor
Gigawatt hour to Megawatt hour1 GWh = 1000 MWhJFactor
Electronvolt to Joule1 eV = 1.602176634e-19 JJFactor
Joule to Electronvolt1 J = 6.241509074460763e18 eVJFactor
Kilocalorie to Joule1 kcal = 4184 JJFactor
Joule to Kilocalorie1 J = 0.000239005736138 kcalJFactor

Power

Power

value * fromFactor / toFactor

Table
Power
ConversionFormulaBase unitMethod
Kilowatt to Metric horsepower1 kW = 1.3596216173 PSWFactor
Metric horsepower to Kilowatt1 PS = 0.73549875 kWWFactor
Kilowatt to Mechanical horsepower1 kW = 1.3410220896 hpWFactor
Watt to BTU per hour1 W = 3.4121416331 BTU/hWFactor
Watt to Kilowatt1 W = 0.001 kWWFactor
Kilowatt to Watt1 kW = 1000 WWFactor
Metric horsepower to Mechanical horsepower1 PS = 0.98632007062 hpWFactor
Mechanical horsepower to Metric horsepower1 hp = 1.01386966542 PSWFactor
Watt to Metric horsepower1 W = 0.0013596216173 PSWFactor
Metric horsepower to Watt1 PS = 735.49875 WWFactor
Kilowatt to BTU per hour1 kW = 3412.14163313 BTU/hWFactor
BTU per hour to Kilowatt1 BTU/h = 0.000293071070172 kWWFactor
Megawatt to Kilowatt1 MW = 1000 kWWFactor
Kilowatt to Megawatt1 kW = 0.001 MWWFactor

Pressure

Pressure

value * fromFactor / toFactor

Table
Pressure
ConversionFormulaBase unitMethod
bar to psi1 bar = 14.503773773 psiPaFactor
psi to bar1 psi = 0.0689475729 barPaFactor
Kilopascal to psi1 kPa = 0.1450377377 psiPaFactor
Atmosphere to bar1 atm = 1.01325 barPaFactor
bar to Kilopascal1 bar = 100 kPaPaFactor
Kilopascal to bar1 kPa = 0.01 barPaFactor
Megapascal to bar1 MPa = 10 barPaFactor
bar to Megapascal1 bar = 0.1 MPaPaFactor
psi to Kilopascal1 psi = 6.89475729317 kPaPaFactor
Millibar to Hectopascal1 mbar = 1 hPaPaFactor
Hectopascal to Millibar1 hPa = 1 mbarPaFactor
Atmosphere to psi1 atm = 14.6959487755 psiPaFactor
psi to Atmosphere1 psi = 0.0680459639099 atmPaFactor
Torr to Pascal1 Torr = 133.322368421 PaPaFactor
Pascal to Torr1 Pa = 0.00750061682704 TorrPaFactor
Millimetre of mercury to Hectopascal1 mmHg = 1.33322387415 hPaPaFactor
Inch of mercury to Hectopascal1 inHg = 33.86389 hPaPaFactor
Hectopascal to Millimetre of mercury1 hPa = 0.750061575846 mmHgPaFactor

Density

Density

value * fromFactor / toFactor

Table
Density
ConversionFormulaBase unitMethod
Gram per cubic centimetre to Kilogram per cubic metre1 g/cm³ = 1,000 kg/m³kg/m³Factor
Kilogram per cubic metre to Gram per cubic centimetre1 kg/m³ = 0.001 g/cm³kg/m³Factor
Kilogram per cubic metre to Gram per litre1 kg/m³ = 1 g/lkg/m³Factor
Gram per litre to Kilogram per cubic metre1 g/l = 1 kg/m³kg/m³Factor
Pound per cubic foot to Kilogram per cubic metre1 lb/ft³ = 16.018463374 kg/m³kg/m³Factor
Kilogram per cubic metre to Pound per cubic foot1 kg/m³ = 0.0624279605761 lb/ft³kg/m³Factor

Time

Time

value * fromFactor / toFactor

Table
Time
ConversionFormulaBase unitMethod
Hour to Second1 h = 3,600 ssFactor
Day to Hour1 d = 24 hsFactor
Week to Day1 week = 7 dsFactor
Minute to Second1 min = 60 ssFactor
Second to Minute1 s = 0.0166666666667 minsFactor
Hour to Minute1 h = 60 minsFactor
Minute to Hour1 min = 0.0166666666667 hsFactor
Day to Week1 d = 0.142857142857 weeksFactor
Year, 365 days to Day1 year = 365 dsFactor
Day to Year, 365 days1 d = 0.0027397260274 yearsFactor
Hour to Day1 h = 0.0416666666667 dsFactor
Second to Hour1 s = 0.000277777777778 hsFactor

Angle

Angle

value * fromFactor / toFactor

Table
Angle
ConversionFormulaBase unitMethod
Degree to Radian1 ° = 0.0174532925 radradFactor
Radian to Degree1 rad = 57.2957795131 °radFactor
Turn to Degree1 turn = 360 °radFactor
Degree to Turn1 ° = 0.00277777777778 turnradFactor
Turn to Radian1 turn = 6.28318530718 radradFactor
Radian to Turn1 rad = 0.159154943092 turnradFactor
Arcminute to Degree1 ′ = 0.0166666666667 °radFactor
Arcsecond to Degree1 ″ = 0.000277777777778 °radFactor
Degree to Arcminute1 ° = 60 ′radFactor

Force

Force

value * fromFactor / toFactor

Table
Force
ConversionFormulaBase unitMethod
Newton to Pound-force1 N = 0.2248089431 lbfNFactor
Pound-force to Newton1 lbf = 4.4482216153 NNFactor
Kilonewton to Newton1 kN = 1000 NNFactor
Newton to Kilonewton1 N = 0.001 kNNFactor
Kilogram-force to Newton1 kgf = 9.80665 NNFactor
Newton to Kilogram-force1 N = 0.101971621298 kgfNFactor
Meganewton to Newton1 MN = 1000000 NNFactor
Newton to Meganewton1 N = 1e-6 MNNFactor
Pound-force to Kilogram-force1 lbf = 0.45359237 kgfNFactor

Torque

Torque

value * fromFactor / toFactor

Table
Torque
ConversionFormulaBase unitMethod
Newton metre to Pound-foot1 N·m = 0.7375621493 lb·ftN·mFactor
Pound-foot to Newton metre1 lb·ft = 1.3558179483 N·mN·mFactor
Newton metre to Kilogram-force metre1 N·m = 0.101971621298 kgf·mN·mFactor
Kilogram-force metre to Newton metre1 kgf·m = 9.80665 N·mN·mFactor
Pound-inch to Newton metre1 lb·in = 0.112984829028 N·mN·mFactor
Newton metre to Pound-inch1 N·m = 8.85074579133 lb·inN·mFactor
Pound-foot to Kilogram-force metre1 lb·ft = 0.138254954376 kgf·mN·mFactor

Fuel economy

Fuel economy

inverse fuel economy via l/100 km

Table
Fuel economy
ConversionFormulaBase unitMethod
Miles per US gallon to Litres per 100 kilometresinverse formulal/100 kmInverse
Litres per 100 kilometres to Miles per US galloninverse formulal/100 kmInverse
Kilometres per litre to Litres per 100 kilometresinverse formulal/100 kmInverse
Litres per 100 kilometres to Kilometres per litreinverse formulal/100 kmInverse
Miles per imperial gallon to Litres per 100 kilometresinverse formulal/100 kmInverse
Litres per 100 kilometres to Miles per imperial galloninverse formulal/100 kmInverse
Miles per US gallon to Miles per imperial galloninverse formulal/100 kmInverse
Miles per imperial gallon to Miles per US galloninverse formulal/100 kmInverse

Typography

Typography

value * fromFactor / toFactor

Table
Typography
ConversionFormulaBase unitMethod
Point to CSS pixel1 pt = 1.3333333333 pxptFactor
CSS pixel to Point1 px = 0.75 ptptFactor
Millimetre to Point1 mm = 2.8346456693 ptptFactor
Point to Millimetre1 pt = 0.352777777778 mmptFactor
CSS pixel to Millimetre1 px = 0.264583333333 mmptFactor
Millimetre to CSS pixel1 mm = 3.77952755906 pxptFactor
Pica to Point1 pc = 12 ptptFactor
Point to Pica1 pt = 0.0833333333333 pcptFactor
Centimetre to CSS pixel1 cm = 37.7952755906 pxptFactor
CSS pixel to Centimetre1 px = 0.0264583333333 cmptFactor

Image resolution

Image resolution

value * fromFactor / toFactor

Table
Image resolution
ConversionFormulaBase unitMethod
Megapixel to Pixel1 MP = 1,000,000 pxpxFactor
Pixel to Megapixel1 px = 0.000001 MPpxFactor
Pixel to Kilopixel1 px = 0.001 kpxpxFactor
Kilopixel to Pixel1 kpx = 1000 pxpxFactor
Megapixel to Gigapixel1 MP = 0.001 GPpxFactor
Gigapixel to Megapixel1 GP = 1000 MPpxFactor

Frequency

Frequency

value * fromFactor / toFactor

Table
Frequency
ConversionFormulaBase unitMethod
Hertz to Revolutions per minute1 Hz = 60 rpmHzFactor
Revolutions per minute to Hertz1 rpm = 0.0166666667 HzHzFactor
Megahertz to Gigahertz1 MHz = 0.001 GHzHzFactor
Kilohertz to Hertz1 kHz = 1000 HzHzFactor
Hertz to Kilohertz1 Hz = 0.001 kHzHzFactor
Gigahertz to Megahertz1 GHz = 1000 MHzHzFactor
Beats per minute to Hertz1 bpm = 0.0166666666667 HzHzFactor
Hertz to Beats per minute1 Hz = 60 bpmHzFactor

Data rate

Data rate

value * fromFactor / toFactor

Table
Data rate
ConversionFormulaBase unitMethod
Megabit per second to Megabyte per second1 Mbit/s = 0.125 MB/sbit/sFactor
Megabyte per second to Megabit per second1 MB/s = 8 Mbit/sbit/sFactor
Gigabit per second to Gigabyte per second1 Gbit/s = 0.125 GB/sbit/sFactor
Gigabyte per second to Gigabit per second1 GB/s = 8 Gbit/sbit/sFactor
Kilobit per second to Kilobyte per second1 kbit/s = 0.125 kB/sbit/sFactor
Kilobyte per second to Kilobit per second1 kB/s = 8 kbit/sbit/sFactor
Megabit per second to Kilobit per second1 Mbit/s = 1000 kbit/sbit/sFactor
Kilobit per second to Megabit per second1 kbit/s = 0.001 Mbit/sbit/sFactor
Gigabit per second to Megabit per second1 Gbit/s = 1000 Mbit/sbit/sFactor
Megabit per second to Gigabit per second1 Mbit/s = 0.001 Gbit/sbit/sFactor
Megabyte per second to Kilobyte per second1 MB/s = 1000 kB/sbit/sFactor
Kilobyte per second to Megabyte per second1 kB/s = 0.001 MB/sbit/sFactor
Megabyte per second to Mebibyte per second1 MB/s = 0.953674316406 MiB/sbit/sFactor
Mebibyte per second to Megabyte per second1 MiB/s = 1.048576 MB/sbit/sFactor
Gigabyte per second to Gibibyte per second1 GB/s = 0.931322574615 GiB/sbit/sFactor
Gibibyte per second to Gigabyte per second1 GiB/s = 1.073741824 GB/sbit/sFactor

Flow rate

Flow rate

value * fromFactor / toFactor

Table
Flow rate
ConversionFormulaBase unitMethod
Cubic metre per hour to Litre per minute1 m³/h = 16.6666666667 l/minm³/sFactor
Litre per minute to Cubic metre per hour1 l/min = 0.06 m³/hm³/sFactor
Litre per second to Cubic metre per hour1 l/s = 3.6 m³/hm³/sFactor
Cubic metre per hour to Litre per second1 m³/h = 0.277777777778 l/sm³/sFactor
Litre per minute to Litre per second1 l/min = 0.0166666666667 l/sm³/sFactor
Litre per second to Litre per minute1 l/s = 60 l/minm³/sFactor
US gallon per minute to Litre per minute1 US gal/min = 3.785411784 l/minm³/sFactor
Litre per minute to US gallon per minute1 l/min = 0.264172052358 US gal/minm³/sFactor
Cubic metre per hour to Cubic foot per minute1 m³/h = 0.588577778691 ft³/minm³/sFactor
Litre per hour to Litre per minute1 l/h = 0.0166666666667 l/minm³/sFactor
Litre per minute to Litre per hour1 l/min = 60 l/hm³/sFactor
Millilitre per minute to Litre per minute1 ml/min = 0.001 l/minm³/sFactor

Acceleration

Acceleration

value * fromFactor / toFactor

Table
Acceleration
ConversionFormulaBase unitMethod
Standard gravity to Metre per second squared1 g = 9.80665 m/s²m/s²Factor
Metre per second squared to Standard gravity1 m/s² = 0.101971621298 gm/s²Factor
Foot per second squared to Metre per second squared1 ft/s² = 0.3048 m/s²m/s²Factor
Metre per second squared to Foot per second squared1 m/s² = 3.28083989501 ft/s²m/s²Factor
Gal to Metre per second squared1 Gal = 0.01 m/s²m/s²Factor
Metre per second squared to Gal1 m/s² = 100 Galm/s²Factor

Electric charge

Electric charge

value * fromFactor / toFactor

Table
Electric charge
ConversionFormulaBase unitMethod
Ampere hour to Milliampere hour1 Ah = 1000 mAhCFactor
Milliampere hour to Ampere hour1 mAh = 0.001 AhCFactor
Ampere hour to Coulomb1 Ah = 3600 CCFactor
Coulomb to Ampere hour1 C = 0.000277777777778 AhCFactor
Milliampere hour to Coulomb1 mAh = 3.6 CCFactor
Coulomb to Milliampere hour1 C = 0.277777777778 mAhCFactor
Kilocoulomb to Ampere hour1 kC = 0.277777777778 AhCFactor