Precision Units
Convert any metric or imperial unit with scientific accuracy.
Measurement Type
🔢
Enter your values to see the result
Real-time calculation enabled
About Unit Converter
Converting between metric and imperial units — length, weight, temperature and more — for recipes, shipping dimensions, travel and any document written for a different country than the one you are in.
How to use it
- Choose the type of measurement.
- Enter the value and the units.
- Read the converted figure.
Worth knowing
Temperature is the odd one: Celsius and Fahrenheit have different zero points, so you cannot simply multiply. Everything else here is a straight ratio.
Common questions
- How precise is it?
- Precise enough for practical use. For engineering tolerances, work in the original units and convert at the end.
- Which gallon?
- US and imperial gallons differ by about 20 per cent — one of the more expensive unit mistakes to make.