Unit Converter

The Unit Converter handles the three most common everyday conversions: length, mass (weight) and temperature. Whether you are reading a recipe in cups while your scale measures grams, sizing a room in feet while your floor plan uses meters, or checking an oven temperature in Fahrenheit while your thermometer reads Celsius, this tool gives you the answer instantly without mental gymnastics.

Length conversions cover the full metric range (millimeters, centimeters, meters, kilometers) and the imperial range (inches, feet, yards, miles) plus nautical miles for navigation. Mass conversions cover milligrams, grams, kilograms, metric tonnes, ounces, pounds and stones. Temperature conversions cover Celsius, Fahrenheit and Kelvin — the three scales you will encounter in science, weather and cooking.

The interface is bidirectional and live: enter a value in any unit and every other unit in the same category updates instantly. This any-direction design is faster than tools that force you to pick a 'from' and 'to'. Conversion factors are precise (1 inch = 2.54 cm exactly, by international agreement since 1959), so results are accurate to the displayed precision.

The tool runs entirely in your browser. No conversion queries are logged or sent anywhere — useful when you are converting values for confidential projects. Switch between Length, Weight and Temperature with a single click.