Unit Converter
Convert length, mass, temperature, volume, time, and digital storage. Temperature is handled separately from the linear units.
About Unit Converter
Convert units online with this free unit converter covering length, mass and weight, temperature, volume, time, and digital data size. Switch between metric and imperial values such as centimetres to inches, kilograms to pounds, Celsius to Fahrenheit, litres to gallons, hours to seconds, and megabytes to gigabytes. Results update using standard conversion factors so homework, recipes, science labs, and storage planning stay consistent.
Students convert length and mass for science class. Travelers convert temperature and volume. Engineers convert mixed drawings. Developers convert data size when a limit is in MiB or GB. Temperature is handled as its own category because Celsius, Fahrenheit, and Kelvin are not a simple multiply. Time conversions help when a duration is stored in seconds but written in hours.
Pick a category, enter a value, choose from and to units, and convert. You can change the target unit without retyping the number. This is not a currency converter and not a timezone map; it is physical and digital units. For dates, use the date or timestamp tools. For percent, use the percentage calculator.
Everything is calculated in your browser, so no input is uploaded or logged. Use this free online unit converter for length, weight, temperature, volume, time, and data size whenever you need a fast, private conversion.