Unit Converter
Convert between different units of measurement. Length, weight, temperature and more.
About this tool
The Unit Converter transforms values between the most common units of measurement used in everyday life and technical contexts. Available categories include length (meters, kilometers, miles, feet, inches), mass (kilograms, grams, pounds, ounces), temperature (Celsius, Fahrenheit, Kelvin), area, volume, and speed.
To use it, select the measurement category, enter the source value in the corresponding field, and choose the input and output units. The conversion happens instantly as you type, with no need to press a button.
Use cases are broad: converting cooking recipes that use cups and ounces to metric measurements, understanding dimensions of imported products described in inches, calculating distances in miles for international travel, or checking whether an oven temperature in Fahrenheit matches what a recipe calls for in Celsius. Engineering and architecture professionals also use converters to verify project specifications across different systems.
The tool runs entirely in the browser with no external server connections. No account is needed, no data is collected, and the values you enter never leave your device. The interface is optimized for quick use on both desktops and mobile devices.
Frequently asked questions
Is the unit converter free?
Yes, completely free with no conversion limits.
Are the values I enter sent to any server?
No. All conversions are calculated locally in your browser. No data is transmitted.
Does it work on mobile?
Yes. The layout adapts to small screens and works in any mobile browser.
What unit categories are available?
Length, mass, temperature, area, volume, and speed — covering the most common everyday and technical needs.
Does temperature conversion include Kelvin?
Yes. Celsius, Fahrenheit, and Kelvin are all available in the temperature category.