Metric and Imperial Unit Converter
Quickly convert common length, weight and temperature measurements.
Convert common length, mass and temperature values between metric and imperial units. Choose a measurement category, starting unit and destination unit, then enter a value to see the converted result.
Examples include inches to centimetres, pounds to kilograms and Fahrenheit to Celsius. The exact relationship 1 inch = 2.54 centimetres is used, while displayed results may be rounded for readability.
How to use this tool
- Select length, weight or temperature.
- Choose the source unit and target unit.
- Enter the source measurement.
- Review the converted result and save it locally if needed.
Frequently asked questions
How do I convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value, then multiply by 5/9: °C = (°F − 32) × 5/9.
How do I convert pounds to kilograms?
Multiply pounds by 0.45359237. For a quick estimate, divide pounds by about 2.205.
Why can converted values contain decimals?
Many units are not related by a whole-number factor. The tool calculates with more precision and rounds only the displayed result.