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Convert length, weight, temperature, area, volume, and speed between metric and imperial units instantly.
Unit mismatches come up constantly — a recipe in cups when your kitchen scale reads grams, a weather forecast in Fahrenheit when you think in Celsius, or a distance in miles when you need kilometers. This converter covers six everyday categories and updates the moment you type, calculated instantly in your browser.
Choose Length, Weight, Temperature, Area, Volume, or Speed from the row of tabs.
Choose the "From" and "To" units from the dropdowns and type the number you want to convert; tap the ⇄ button to reverse the direction.
The converted value updates instantly as you type — there's no button to click.
Runs in your browser — nothing uploaded
Length, weight, temp, and more
Reverse units in one tap
No registration required
Pick a category like length or weight, choose the from and to units, type a value, and the converted result appears instantly. Completely free.
You can convert length, weight, temperature, area, volume, and speed, covering common metric and imperial units.
Yes. Select the Temperature category to convert between Celsius, Fahrenheit, and Kelvin accurately.
Yes. Conversions use standard internationally accepted factors, with results rounded to a sensible number of decimals.
No. All conversions happen entirely in your browser. Nothing is uploaded — guaranteed privacy.
Use the swap button between the two unit selectors to instantly reverse the direction of the conversion.