About Unit converter
Use the unit converter for the supported everyday distance, mass, and temperature pairs. You can convert kilometers to miles, kilograms to pounds, or Celsius to Fahrenheit without entering a formula. Source and destination units must belong to the same family.
How to convert measurement units
- Enter a numeric value.
- Choose compatible From and To units, then select Generate.
- Read the calculated conversion and copy or download the result.
A practical example
- Input
Value: 1; From: km; To: mi.
- Result
1 km = 0.6213711922 mi
The displayed result is rounded to ten significant digits, rather than presented as unlimited precision.
Supported input and limitations
- Supported units are km, mi, m, kg, lb, Celsius, and Fahrenheit. Area, volume, currency, inches, and feet are not included.
- Displayed precision is limited. Use an appropriate calibrated workflow for scientific, medical, engineering, or regulated decisions.
Processing happens on your device. Read about local processing and optional workspace recovery.
Frequently asked questions
How do I convert Celsius to Fahrenheit?
Choose Celsius as From and Fahrenheit as To. The calculation is Celsius multiplied by 9/5, plus 32; for example, 0 Celsius is 32 Fahrenheit.
Why can I not convert kilograms to kilometers?
Kilograms measure mass and kilometers measure distance. The tool rejects conversions between incompatible unit families.