Online-Unit-Converter.com is a free unit conversion service that will convert the most popular units of distance, temperature, volume, time, speed, mass, power, density, pressure, energy and many others.

 

Our site is designed for easy access from both desktop and mobile. Feel free to bookmark the site and use it as your own personal reference tool.

 

Online-Unit-Converter.com allows you to perform over 25,000 unit conversions, between nearly 1000 units, organized in 21 categories. It's the quick and easy way to convert measurements from one unit to another. New units can be added if needed, feel free to suggest. And don't forget to bookmark this site before you leave.

Mass and Weight

Metric, Avoirdupois, Troy, Apothecaries, Japanese, Chinese Imperial, Thai, Hong Kong, Old Russian, Old French, Old German, Ancient Roman, Ancient Greek, Biblical, Baha'i Faith. Kilograms, Ounces, Pounds, Troy Pounds, Stones, Tons, Carats and more ...

 

Distance and Length

Metric, British (Imperial) And U.S. System, Japanese, Chinese Imperial, Thai, Nautical, Geographical (German), Typographical (British and U.S. - ATA system), Typographical (Europe - Didot system), Astronomical, Old French, Old Spanish and Portuguese, Old Russian, Ancient Roman, Biblical, Ancient Greek. Millimeters, Centimeters, Inches, Feet, Yards, Meters, Kilometers, Miles, Mils, Rods, Fathoms, Nautical Miles and more ...

 

Capacity and Volume

Metric, U.S. Liquid Measure, U.S. Dry Measure, British Imperial Liquid And Dry, British and U.S. derivatives of length units, Cooking (U.S.), Cooking (International), Japanese, Chinese Imperial, Thai, Old French, Old Russian Liquid Measure, Old Russian Dry Measure, Ancient Roman Liquid Measure, Ancient Roman Dry Measure, Biblical Dry Measure, Biblical Liquid Measure. Liquid and Dry. Liters, Fluid Ounces, Pints, Quarts, Gallons, Milliliter/cc, Barrels, Gill, Hogshead and more ...

 

Area

Metric, British (Imperial) And U.S. System, Japanese, Chinese Imperial, Thai, Old French, Old Spanish, Old Russian, Ancient Roman. Square centimeter, Square meter, Square inch, Square foot, Square mile, Square Kilometer, Acres, Circles and more ...

 

Temperature

Scale, Increment. Celsius, Fahrenheit, Rankine, Reaumur, and Kelvin and more ...

 

Speed

Metric, British (Imperial) And U.S. System, For Runners and Joggers, Nautical, Other. Centimeters/second, Meters/second, Kilometers/hour, Feet/second, Feet/minute, Miles/hour, Knots, Mach and more ...

 

Acceleration

Metric, British (Imperial) And U.S. System, Other, Car performance, Free Fall Acceleration. Kilometer per second squared, Standard acceleration of free fall on Earth, Galileo, seconds from 0 to 100 mph and more ...

 

Time

Common, Astronomical. Century, Gregorian year, Anomalistic year, Dracontic month and more ...

 

Pressure and Stress

Metric, British and U.S. (Imperial system), Mercury, Water, Atmosphere. Dyne/sq cm, Pascal, Poundal/sq foot, Torr, inch H2O, Inch mercury and more ...

 

Circular Measure

Common, Nautical, Artillery. Circumference, Sextant, Radian, Minute, German thousandth and more ...

 

Power

International System (SI), Common, British and American. Watts, BTU/hour, Foot-lbs/second, Horsepower, Kilowatts and more ...

 

Energy and Work

International System (SI), Common, British and American, TNT energy equivalent. Joules, Btu, Calories, Electronvolt, Erg, Watt hour, Therm, Toe, Tce and more ...

 

Torque

Metric, British and U.S. Pound-force Foot, Pound-force Inch, Kilogram-force Meter, and Newton meter and more ...

 

Volumetric flow rate

Metric, U.S. and British Imperial. Cubic meter per second, Liter per hour, U.S. gallon per second, Cubic foot per day and more ...

 

Mass flow rate

Metric, U.S. and British Imperial. Tonne per second, Gram per minute, Short (US) ton per second, Ounce per day and more ...

 

Cooking

U.S. and British Kitchen, Metric (European) Kitchen. Pounds, Ounces, Cups, Tea spoons and more ...

 

Weight to Volume

Metric Weight/Mass, Metric Volume, U.S. Weight/Mass, U.S. Volume. Kilograms, Liter, Pounds, Dry gallons and more ...

 

Fractions and Percent

Quantity, Percentages and Parts, Fractions, Amount of Substance, Number of Performers. Pair, Baker's dozen, Permille , Percent, One fifth and more ...

 

Computer Storage

Data Storage, Transmission. Gigabit, Kilobit, Gigabyte, Byte and more ...

 

Data Transfer Rate

Basic Units, Byte-based, Data Transfer Time, Computer Connection Speed, Transfer Rate per Different Time. Kilobit per second, Byte per second, Second per megabyte, ADSL, T1, Ethernet 10BASE-T and more ...

 

Fuel Economy

Metric, U.S. system, British system. Litres per 100 km, Miles per gallon, Gallons per 100 miles and more ...