About Conversion Amigo

Conversion Amigo is a free unit converter. It covers length, temperature, area, volume, weight, time, speed, data storage, pressure, energy, power and angle. Type a value, pick two units, and the answer appears straight away.

How the numbers are produced

• Where a unit is defined exactly, the converter uses that exact conversion factor, following NIST Special Publication 811. An inch, for example, is exactly 2.54 centimeters.
• Results are rounded to 9 significant digits for display.
• Some unit names have more than one definition, such as the US gallon and the imperial gallon. Where that is the case, the page says which definition it uses.

If you think a conversion is wrong, please tell us so it can be checked and corrected.

How the site is paid for

The converter is free to use and is supported by a small number of ads. The privacy policy explains what that means for your data.