Unit Converter

This unit converter handles length, weight, and temperature. Results update as you type. Common pairs: kilometres to miles for travel, kilograms to pounds for recipes or luggage, and Celsius to Fahrenheit for weather or cooking. Metric and imperial units sit in the same tool.

Length covers millimetres through miles, including metres, kilometres, inches, feet, and yards. Weight covers milligrams through stones, including grams, kilograms, ounces, and pounds. Temperature converts among Celsius, Fahrenheit, and Kelvin with the standard formulas.

Pick a category, enter a number, and choose the two units. There is no calculate button. Values stay in this browser; nothing is sent to a server.