📚 Unit Glossary

A comprehensive reference guide to all measurement units supported by ConvertToUnits.com.

📏Length ⏱️Time 🌡️Temperature 🔵Pressure 🗺️Area 📦Volume ⚖️Weight And Mass ⚡Energy 🔌Power 🚀Speed 💪Force ⚖️/📦Density 💧/sVolume Flow 💾Data

📏

Length Units

Convert between different units of length and distance

Meter

The base unit of length in the International System of Units (SI). Originally defined as one ten-millionth of the distance from the equator to the North Pole.

Also known as:metersmetremetresm

Convert Meter

Kilometer

Equal to 1,000 meters. Commonly used for measuring longer distances such as roads and geographic distances.

Also known as:kilometerskilometerkilometrekilometreskm

Convert Kilometer

Mile

An imperial unit equal to 5,280 feet or approximately 1.609 kilometers. Widely used in the United States and United Kingdom for road distances.

Also known as:milesmimile

Convert Mile

Yard

An imperial unit equal to 3 feet or 36 inches. Originally defined as the distance from the tip of the nose to the end of the thumb.

Also known as:yardsydydsyard

Convert Yard

Foot

An imperial unit equal to 12 inches or approximately 30.48 centimeters. Used extensively in the United States for height and short distances.

Also known as:feetftfoot

Convert Foot

Inch

An imperial unit equal to 1/12 of a foot or 2.54 centimeters. Commonly used for screen sizes and small measurements.

Also known as:inchesininch"

Convert Inch

Centimeter

Equal to one hundredth of a meter. Widely used for everyday measurements in countries using the metric system.

Also known as:centimeterscentimetercentimetrecentimetrescm

Convert Centimeter

Millimeter

Equal to one thousandth of a meter. Used for precise measurements in engineering and manufacturing.

Also known as:millimetersmillimetermillimetremillimetresmm

Convert Millimeter

Nautical Mile

nmi

A unit used in maritime and air navigation, equal to approximately 1.852 kilometers or 1.151 miles.

Also known as:nautical milesnautical milenminmnaut mi

Convert Nautical Mile

Micrometer

μm

Equal to one millionth of a meter. Used in scientific and engineering contexts for very small measurements.

Also known as:micrometersmicrometermicrometremicrometresμm

Convert Micrometer

⏱️

Time Units

Convert between different units of time duration

Second

The base unit of time in the SI system. Defined by the radiation of cesium-133 atoms.

Also known as:secondssecsecsssecond

Convert Second

Minute

min

Equal to 60 seconds. Part of the sexagesimal (base-60) system inherited from ancient Babylon.

Also known as:minutesminminsminute

Convert Minute

Hour

Equal to 60 minutes or 3,600 seconds. One of the most commonly used units for measuring time duration.

Also known as:hourshrhrshhour

Convert Hour

Day

Equal to 24 hours. Based on one complete rotation of Earth on its axis.

Also known as:daysdday

Convert Day

Week

Equal to 7 days. A traditional unit derived from ancient religious and cultural practices.

Also known as:weekswkwksweek

Convert Week

Month

Approximately 30-31 days. Based on the lunar cycle, though calendar months vary in length.

Also known as:monthsmomonmonth

Convert Month

Year

Approximately 365.25 days. Based on one complete orbit of Earth around the Sun.

Also known as:yearsyryrsyyear

Convert Year

Millisecond

One thousandth of a second. Used in computing and scientific measurements.

Also known as:millisecondsmsmsecmsecsmillisecond

Convert Millisecond

Microsecond

μs

One millionth of a second. Used in electronics and high-speed phenomena.

Also known as:microsecondsμsususecusecs

Convert Microsecond

Nanosecond

One billionth of a second. Used in computing and physics for measuring extremely short time intervals.

Also known as:nanosecondsnsnsecnsecsnanosecond

Convert Nanosecond

🌡️

Temperature Units

Convert between Celsius, Fahrenheit, and Kelvin

Celsius

°C

A metric temperature scale where 0° is the freezing point and 100° is the boiling point of water at standard pressure.

Also known as:celsiuscelciuscentigrade°cc

Convert Celsius

Fahrenheit

°F

A temperature scale where 32° is the freezing point and 212° is the boiling point of water. Used primarily in the United States.

Also known as:fahrenheit°ffdegfdeg f

Convert Fahrenheit

Kelvin

The SI unit of temperature. Starts at absolute zero (-273.15°C), the lowest theoretically possible temperature.

Also known as:kelvinkdegkdeg k

Convert Kelvin

🔵

Pressure Units

Convert between different units of pressure

Pascal

The SI unit of pressure, equal to one newton per square meter. Named after Blaise Pascal.

Also known as:pascalspapascal

Convert Pascal

Bar

bar

Equal to 100,000 pascals. Approximately equal to atmospheric pressure at sea level.

Also known as:barsbar

Convert Bar

PSI - Pound per Square Inch

psi

Pounds per square inch. Commonly used in the United States for tire pressure and industrial applications.

Also known as:pound per square inchpounds per square inchlbf/in²psi

Convert PSI - Pound per Square Inch

Atmosphere

atm

Standard atmospheric pressure at sea level, approximately 101,325 pascals.

Also known as:atmospheresatmospherestandard atmosphere

Convert Atmosphere

Torr

Approximately 1/760 of an atmosphere. Named after Evangelista Torricelli, inventor of the barometer.

Also known as:torrstorr

Convert Torr

Kilopascal

kPa

Kilopascal, equal to 1,000 pascals. Commonly used for atmospheric and tire pressure in metric countries.

Also known as:kilopascalskpakilo pascalkilos pascalkilopascal

Convert Kilopascal

Megapascal

MPa

Megapascal, equal to 1,000,000 pascals. Used for measuring high pressures in engineering.

Also known as:megapascalsmpamega pascalmegas pascalmegapascal

Convert Megapascal

Millimeter of Mercury

mmHg

Millimeters of mercury. Traditionally used for blood pressure and barometric pressure measurements.

Also known as:mmhgmm hgmillimeters of mercurymillimeter of mercury

Convert Millimeter of Mercury

Inch of Mercury

inHg

Inches of mercury. Used in the United States for barometric pressure readings.

Also known as:inhgin hginches of mercuryinch of mercury

Convert Inch of Mercury

Millibar

mbar

Equal to 100 pascals. Commonly used in meteorology for atmospheric pressure.

Also known as:millibarsmbarmbmillibar

Convert Millibar

Inches of Water

inH2O

A unit of pressure measurement.

Also known as:inches of waterinch of waterinH2O

Convert Inches of Water

Centimeter of Mercury

cmHg

A unit of pressure measurement.

Also known as:centimeters of mercurycentimeter of mercurycmHg

Convert Centimeter of Mercury

Foot of Water

ftH2O

A unit of pressure measurement.

Also known as:feet of waterfoot of waterftH2O

Convert Foot of Water

Meter of Water

mH2O

A unit of pressure measurement.

Also known as:meters of watermeter of watermH2O

Convert Meter of Water

Kilogram Force per Square Centimeter

kgf/cm²

A unit of pressure measurement.

Also known as:kilogram force per square centimeterkgf/cm²

Convert Kilogram Force per Square Centimeter

🗺️

Area Units

Convert between different units of area

Square Meter

m²

A unit of area measurement.

Also known as:square meterssquare meterm2sqm

Convert Square Meter

Square Kilometer

km²

A unit of area measurement.

Also known as:square kilometerssquare kilometerkm2sqkm

Convert Square Kilometer

Square Centimeter

cm²

A unit of area measurement.

Also known as:square centimeterssquare centimetercm2sqcm

Convert Square Centimeter

Square Millimeter

mm²

A unit of area measurement.

Also known as:square millimeterssquare millimetermm2sqmm

Convert Square Millimeter

Square Micrometer

µm²

A unit of area measurement.

Also known as:square micrometerssquare micrometerµm2sqµm

Convert Square Micrometer

Hectare

A unit of area measurement.

Also known as:hectareshahectare

Convert Hectare

Square Mile

mi²

A unit of area measurement.

Also known as:square milessquare milemi2sqmi

Convert Square Mile

Square Yard

yd²

A unit of area measurement.

Also known as:square yardssquare yardyd2sqyd

Convert Square Yard

Square Foot

ft²

A unit of area measurement.

Also known as:square feetsquare footft2sqft

Convert Square Foot

Square Inch

in²

A unit of area measurement.

Also known as:square inchessquare inchin2sqin

Convert Square Inch

Acre

A unit of area measurement.

Also known as:acresacre

Convert Acre

📦

Volume Units

Convert between different units of volume

Cubic Meter

m³

A unit of volume measurement.

Also known as:cubic meterscubic meterm3cum

Convert Cubic Meter

Cubic Kilometer

km³

A unit of volume measurement.

Also known as:cubic kilometerscubic kilometerkm3cumkm

Convert Cubic Kilometer

Cubic Centimeter

cm³

A unit of volume measurement.

Also known as:cubic centimeterscubic centimetercm3cum

Convert Cubic Centimeter

Cubic Millimeter

mm³

A unit of volume measurement.

Also known as:cubic millimeterscubic millimetermm3cummmcubic millimetre

Convert Cubic Millimeter

Liter

A unit of volume measurement.

Also known as:litersliterllitrelitres

Convert Liter

Milliliter

A unit of volume measurement.

Also known as:millilitersmillilitermlmillilitremillilitres

Convert Milliliter

Cubic Mile

mi³

A unit of volume measurement.

Also known as:cubic milescubic milemi3

Convert Cubic Mile

Cubic Yard

yd³

A unit of volume measurement.

Also known as:cubic yardscubic yardyd3cuyd

Convert Cubic Yard

Cubic Foot

ft³

A unit of volume measurement.

Also known as:cubic feetcubic footft3cuft

Convert Cubic Foot

Cubic Inch

in³

A unit of volume measurement.

Also known as:cubic inchescubic inchin3cuin

Convert Cubic Inch

US Gallon

us gal

A unit of volume measurement.

Also known as:gallonsgallonus gallonsus gallonus gal

Convert US Gallon

US Pint

A unit of volume measurement.

Also known as:pintspintptptsus pint

Convert US Pint

US Fluid Ounce

fl oz

A unit of volume measurement.

Also known as:fluid ouncesfluid ouncefl ozflozus fluid ounce

Convert US Fluid Ounce

US Barrel Oil

bbl

A unit of volume measurement.

Also known as:barrelsbarrelbblus barrelus barrels

Convert US Barrel Oil

Imperial Gallon

imp gal

A unit of volume measurement.

Also known as:Imperial Gallonsimperial gallonimp gal

Convert Imperial Gallon

⚖️

Weight And Mass Units

Convert between different units of weight and mass

Kilogram

A unit of mass measurement.

Also known as:kilogramkilogramskgkilokilos

Convert Kilogram

Gram

A unit of mass measurement.

Also known as:gramgramsg

Convert Gram

Pound

A unit of mass measurement.

Also known as:poundpoundslblbs

Convert Pound

Ounce

A unit of mass measurement.

Also known as:ounceouncesoz

Convert Ounce

Carat

A unit of mass measurement.

Also known as:caratcaratsctcar

Convert Carat

Atomic Mass Unit

amu

A unit of mass measurement.

Also known as:atomic mass unitatomic mass unitsamuu

Convert Atomic Mass Unit

⚡

Energy Units

Convert between different units of energy

Joule

A unit of energy measurement.

Also known as:joulejoulesj

Convert Joule

Kilojoule

A unit of energy measurement.

Also known as:kilojoulekilojouleskj

Convert Kilojoule

Kilowatt Hour

kWh

A unit of energy measurement.

Also known as:kilowatt hourkilowatt hourskwh

Convert Kilowatt Hour

Watt Hour

A unit of energy measurement.

Also known as:watt hourwatt hourswhwatthourwatthours

Convert Watt Hour

Horsepower Hour

hp·h

A unit of energy measurement.

Also known as:horsepower hourhorsepower hourshphhorsepowerhourhorsepowerhours

Convert Horsepower Hour

Gigajoule

A unit of energy measurement.

Also known as:gigajoulegigajoulesgj

Convert Gigajoule

Megajoule

A unit of energy measurement.

Also known as:megajoulemegajoulesmj

Convert Megajoule

Millijoule

A unit of energy measurement.

Also known as:millijoulemillijoulesmj

Convert Millijoule

Microjoule

µJ

A unit of energy measurement.

Also known as:microjoulemicrojoulesµj

Convert Microjoule

Nanojoule

A unit of energy measurement.

Also known as:nanojoulenanojoulesnj

Convert Nanojoule

Gigawatt Hour

GWh

A unit of energy measurement.

Also known as:gigawatt hourgigawatt hoursgwh

Convert Gigawatt Hour

Megawatt Hour

MWh

A unit of energy measurement.

Also known as:megawatt hourmegawatt hoursmwh

Convert Megawatt Hour

Kilowatt Second

kWs

A unit of energy measurement.

Also known as:kilowatt secondkilowatt secondskws

Convert Kilowatt Second

Watt Second

A unit of energy measurement.

Also known as:watt secondwatt secondsws

Convert Watt Second

🔌

Power Units

Convert between different units of power

Watt

A unit of power measurement.

Also known as:wattwattsw

Convert Watt

Kilowatt

A unit of power measurement.

Also known as:kilowattkilowattskw

Convert Kilowatt

Megawatt

A unit of power measurement.

Also known as:megawattmegawattsmw

Convert Megawatt

Petawatt

A unit of power measurement.

Also known as:petawattpetawattspw

Convert Petawatt

Exawatt

A unit of power measurement.

Also known as:exawattexawattsew

Convert Exawatt

Terawatt

A unit of power measurement.

Also known as:terawattterawattstw

Convert Terawatt

Gigawatt

A unit of power measurement.

Also known as:gigawattgigawattsgw

Convert Gigawatt

Hectowatt

A unit of power measurement.

Also known as:hectowatthectowattshw

Convert Hectowatt

Deciwatt

A unit of power measurement.

Also known as:deciwattdeciwattsdw

Convert Deciwatt

Centiwatt

A unit of power measurement.

Also known as:centiwattcentiwattscw

Convert Centiwatt

Milliwatt

A unit of power measurement.

Also known as:milliwattmilliwattsmw

Convert Milliwatt

Horsepower

A unit of power measurement.

Also known as:horsepowerhorsepowershp

Convert Horsepower

Joule per Second

J/s

A unit of power measurement.

Also known as:joule per secondjoules per secondj/s

Convert Joule per Second

Joule per Hour

J/h

A unit of power measurement.

Also known as:joule per hourjoules per hourj/h

Convert Joule per Hour

Joule per Minute

J/min

A unit of power measurement.

Also known as:joule per minutejoules per minutej/min

Convert Joule per Minute

Kilojoule per Second

kJ/s

A unit of power measurement.

Also known as:kilojoule per secondkilojoules per secondkj/s

Convert Kilojoule per Second

Kilojoule per Hour

kJ/h

A unit of power measurement.

Also known as:kilojoule per hourkilojoules per hourkj/h

Convert Kilojoule per Hour

Kilojoule per Minute

kJ/min

A unit of power measurement.

Also known as:kilojoule per minutekilojoules per minutekj/min

Convert Kilojoule per Minute

🚀

Speed Units

Convert between different units of speed

Meter per Second

m/s

A unit of speed measurement.

Also known as:meter per secondmeters per secondm/smpsmeter/sec

Convert Meter per Second

Meter per Hour

m/h

A unit of speed measurement.

Also known as:meter per hourmeters per hourm/hmeter/hrmeters/hr

Convert Meter per Hour

Meter per Minute

m/min

A unit of speed measurement.

Also known as:meter per minutemeters per minutem/minmeter/minmeters/min

Convert Meter per Minute

Kilometer per Second

km/s

A unit of speed measurement.

Also known as:kilometer per secondkilometers per secondkm/skm/seckilometer/sec

Convert Kilometer per Second

Kilometer per Minute

km/min

A unit of speed measurement.

Also known as:kilometer per minutekilometers per minutekm/minkm/minkilometer/min

Convert Kilometer per Minute

Kilometer per Hour

km/h

A unit of speed measurement.

Also known as:kilometer per hourkilometers per hourkm/hkm/hrkilometer/hr

Convert Kilometer per Hour

Mile per Hour

mph

A unit of speed measurement.

Also known as:mile per hourmiles per hourmph

Convert Mile per Hour

Mile per Second

mi/s

A unit of speed measurement.

Also known as:mile per secondmiles per secondmi/s

Convert Mile per Second

Mile per Minute

mi/min

A unit of speed measurement.

Also known as:mile per minutemiles per minutemi/min

Convert Mile per Minute

Centimeter per Second

cm/s

A unit of speed measurement.

Also known as:centimeter per secondcentimeters per secondcm/scm/seccentimeter/sec

Convert Centimeter per Second

Centimeter per Minute

cm/min

A unit of speed measurement.

Also known as:centimeter per minutecentimeters per minutecm/mincm/mincentimeter/min

Convert Centimeter per Minute

Centimeter per Hour

cm/h

A unit of speed measurement.

Also known as:centimeter per hourcentimeters per hourcm/hcm/hrcentimeter/hr

Convert Centimeter per Hour

Millimeter per Second

mm/s

A unit of speed measurement.

Also known as:millimeter per secondmillimeters per secondmm/smm/secmillimeter/sec

Convert Millimeter per Second

Millimeter per Minute

mm/min

A unit of speed measurement.

Also known as:millimeter per minutemillimeters per minutemm/minmm/minmillimeter/min

Convert Millimeter per Minute

Millimeter per Hour

mm/h

A unit of speed measurement.

Also known as:millimeter per hourmillimeters per hourmm/hmm/hrmillimeter/hr

Convert Millimeter per Hour

Foot per Second

ft/s

A unit of speed measurement.

Also known as:foot per secondfeet per secondft/sft/secfoot/sec

Convert Foot per Second

Foot per Minute

ft/min

A unit of speed measurement.

Also known as:foot per minutefeet per minuteft/minft/minfoot/min

Convert Foot per Minute

Foot per Hour

ft/h

A unit of speed measurement.

Also known as:foot per hourfeet per hourft/hft/hrfoot/hr

Convert Foot per Hour

Yard per Second

yd/s

A unit of speed measurement.

Also known as:yard per secondyards per secondyd/syd/secyard/sec

Convert Yard per Second

Yard per Minute

yd/min

A unit of speed measurement.

Also known as:yard per minuteyards per minuteyd/minyd/minyard/min

Convert Yard per Minute

Yard per Hour

yd/h

A unit of speed measurement.

Also known as:yard per houryards per houryd/hyd/hryard/hr

Convert Yard per Hour

Light Speed

A unit of speed measurement.

Also known as:light speedspeed of lightc

Convert Light Speed

💪

Force Units

Convert between different units of force

Newton

A unit of force measurement.

Also known as:newtonnnewtons

Convert Newton

Kilonewton

A unit of force measurement.

Also known as:kilonewtonknkilonewtons

Convert Kilonewton

Kilogram Force

kgf

A unit of force measurement.

Also known as:kilogram forcekgfkilogramforcekilogram forces

Convert Kilogram Force

Gram Force

A unit of force measurement.

Also known as:gram forcegfgramforcegram forces

Convert Gram Force

Ton Force

A unit of force measurement.

Also known as:ton forcetftonforceston forces

Convert Ton Force

Exanewton

A unit of force measurement.

Also known as:exanewtonENexanewtons

Convert Exanewton

Petanewton

A unit of force measurement.

Also known as:petanewtonPNpetanewtons

Convert Petanewton

Teranewton

A unit of force measurement.

Also known as:teranewtonTNteranewtons

Convert Teranewton

Giganewton

A unit of force measurement.

Also known as:giganewtonGNgiganewtons

Convert Giganewton

Megnewton

A unit of force measurement.

Also known as:meganewtonMNmeganewtons

Convert Megnewton

Centinewton

A unit of force measurement.

Also known as:centinewtoncNcentinewtons

Convert Centinewton

Millinewton

A unit of force measurement.

Also known as:millinewtonmNmillinewtons

Convert Millinewton

Micronewton

µN

A unit of force measurement.

Also known as:micronewtonµNmicronewtons

Convert Micronewton

Nanonewton

A unit of force measurement.

Also known as:nanonewtonnNnanonewtons

Convert Nanonewton

Joule per Meter

J/m

A unit of force measurement.

Also known as:joule per meterJ/mjoules per meterjoule/metersjoules/meters

Convert Joule per Meter

Joule per Centimeter

J/cm

A unit of force measurement.

Also known as:joule per centimeterJ/cmjoules per centimeterjoule/centimetersjoules/centimeters

Convert Joule per Centimeter

⚖️/📦

Density Units

Convert between different units of density

Gram per Milliliter

g/mL

A unit of density measurement.

Also known as:gram per millilitergrams per milliliterg/mLg/ml

Convert Gram per Milliliter

Kilogram per Cubic Meter

kg/m³

A unit of density measurement.

Also known as:kilogram per cubic meterkilograms per cubic meterkg/m³kg/m3

Convert Kilogram per Cubic Meter

Pound per Cubic Foot

lb/ft³

A unit of density measurement.

Also known as:pound per cubic footpounds per cubic footlb/ft³lb/ft3

Convert Pound per Cubic Foot

Pound per Cubic Inch

lb/in³

A unit of density measurement.

Also known as:pound per cubic inchpounds per cubic inchlb/in³lb/in3

Convert Pound per Cubic Inch

💧/s