Unit converter
Convert length, weight and temperature units quickly and accurately. Free, private, no sign-up.
About the Unit converter
Everyday life constantly asks us to switch between units. A recipe may list ounces while your scale shows grams, a travel guide may give distances in miles while your road signs show kilometres, and a weather report may use Fahrenheit when you think in Celsius. This free unit converter removes the guesswork and gives you the answer instantly.
Select a category, enter a value and choose the units to convert from and to. The tool supports length (meter, kilometer, centimeter, mile, foot and inch), weight (kilogram, gram, pound and ounce) and temperature (Celsius, Fahrenheit and Kelvin). Results are calculated with high precision and shown with up to eight significant digits, so they are accurate enough for school work, cooking, shopping and travel. Everything runs in your browser, which means it is fast and works without any sign-up. Students, engineers, cooks and travellers can use it as often as needed on a phone or a computer.
How to use
Pick a type (length, weight or temperature), enter a value, then choose the unit to convert from and to. The result updates instantly.
Frequently asked questions
- Which units are supported?
- Length: meter, kilometer, centimeter, mile, foot and inch. Weight: kilogram, gram, pound and ounce. Temperature: Celsius, Fahrenheit and Kelvin.
- How do I convert Celsius to Fahrenheit?
- Multiply the Celsius value by 9/5 and add 32.
- How accurate are the results?
- Results are shown with up to 8 significant digits.
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