Unit Converter
Convert length, weight, volume, area, speed, data and temperature units instantly.
🔒 Runs in your browser. Nothing you enter is uploaded or stored.
How to use it
Choose the type of measurement, type a value, then pick the units to convert from and to. The answer updates as you type. Use ⇄ to swap the direction.
Conversions use the exact international definitions, for example 1 inch = 2.54 cm and 1 pound = 0.45359237 kg. Results are rounded to six decimal places.
FAQ
Why are there two kinds of gallon?
A US gallon is 3.785 litres and a UK (imperial) gallon is 4.546 litres. Recipes and fuel figures from the US use the smaller one.
What is the difference between MB and MiB?
MB (megabyte) is 1,000,000 bytes. MiB (mebibyte) is 1,048,576 bytes (2²⁰). Drive makers use MB and GB; some operating systems report sizes in MiB and GiB, which is why a drive can look smaller than advertised.
What is a "square" in Australian real estate?
A square is an old Australian measure for house floor area: 100 square feet, about 9.29 m².