±Free
Unit converter
Convert length, weight and temperature units.
Convert between the supported length, weight or temperature units. Choose compatible source and destination units, then enter a value. Length and weight use fixed conversion factors; temperature conversions apply the required offset as well as scaling.
How to use
- Enter the value to convert.
- Select the source unit, then a destination unit from the same measurement category.
- Run the converter and copy or download the result.
Worked example
Example input
Value: 1 From: mile To: kilometer
Example result
Result: 1.609344
Limitations and details
Supported units are meter, kilometer, centimeter, mile, foot, kilogram, gram, pound, Celsius, Fahrenheit and Kelvin. Different measurement categories cannot be mixed. Temperatures below absolute zero are rejected. Results display at most eight decimal places.
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.