Unit Calculator

How to Use the Unit Calculator

1. Select the unit category you want to convert (length, weight and mass, volume, area, temperature, energy, speed, time, power, data, pressure, angle).
2. Enter the value to convert.
3. Select the unit to convert from and the unit to convert to.
4. The result will be calculated and displayed automatically.
5. Click the arrow button to swap units.

Supported Unit Categories

• L

  Length

  millimeters, centimeters, meters, kilometers, inches, feet, yards, miles, etc.

• W

  Weight

  milligrams, grams, kilograms, tonnes, ounces, pounds, stones, etc.

• V

  Volume

  milliliters, liters, cubic centimeters, cubic meters, gallons, pints, quarts, etc.

• A

  Area

  square meters, square kilometers, hectares, acres, square feet, square yards, pyeong, etc.

• T

  Temperature

  Celsius (°C), Fahrenheit (°F), Kelvin (K)

• E

  Energy

  joules (J), kilojoules (kJ), calories (cal), kilocalories (kcal), watt-hours (Wh), kilowatt-hours (kWh), electron volts (eV), BTU, etc.

• S

  Speed

  meters/second (m/s), kilometers/hour (km/h), miles/hour (mph), knots, feet/second (ft/s), Mach, etc.

• T

  Time

  nanoseconds (ns), microseconds (μs), milliseconds (ms), seconds (s), minutes (min), hours (h), days, weeks, months, years, etc.

• P

  Power

  watts (W), kilowatts (kW), megawatts (MW), horsepower (hp), metric horsepower (PS), BTU/hour, etc.

• D

  Data

  bits (bit), bytes (B), kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), petabytes (PB), etc.

• P

  Pressure

  pascals (Pa), kilopascals (kPa), bars (bar), atmospheres (atm), psi, millimeters of mercury (mmHg), Torr, etc.

• A

  Angle

  radians (rad), degrees (°), gradians (grad), arcminutes ('), arcseconds ("), revolutions (rev), etc.