Unit converter
Length, weight, volume, area, speed, and temperature — including C, F, and K.
This runs in your browser. Nothing is uploaded.
About Unit converter
Converts length, weight, volume, area, speed, and temperature in your browser, including Celsius, Fahrenheit, and Kelvin.
Unit conversion websites love to split temperature into its own URL so they can rank twice, then wrap a multiplication in ads. I folded Celsius, Fahrenheit, and Kelvin into the same converter as length, weight, volume, area, and speed. One page, one tab, no upload — there is nothing to upload, but I still do not need your query logged against an account.
Linear units convert through a base (metres, kilograms, litres, square metres, metres per second). Temperature is the exception because of the offset: the page goes through Kelvin and back so 0 °C is 32 °F and not a wrong scale factor. Values are formatted to a sensible precision; very large or tiny results switch to scientific notation rather than a wall of zeros.
I left out obscure units that exist so a converter can claim '2000 units'. If you need furlongs per fortnight, you already know the joke. The set here is what I actually convert when a recipe, a spec sheet, or a weather report is in the other system.
How to use Unit converter
- 1Pick a category, including Temperature if you need C, F, or K.
- 2Enter the value and choose the from and to units.
- 3Read the result in the main pane. It updates as you type.
What it won't do
- US customary volume, not imperial.
- No currency, no cooking 'pinch', no historical units.
Common questions
Is temperature included in the unit converter or is it a separate tool?
It is a category on this page. Celsius, Fahrenheit, and Kelvin convert through Kelvin so the offset is handled. There is no standalone temperature URL — I will not split a radio button into a landing page.
Which gallon does the volume converter use?
The US liquid gallon (3.785411784 L), plus US quarts, cups, and fluid ounces. Imperial gallons are not in the list. If your recipe is from the UK and predates metric labelling, double-check before you bake.
Why does a tiny converted value show up in scientific notation?
Below about 0.0001, a long decimal is harder to read than 1.23e-7. The underlying number is still the full IEEE value; only the printed form changes.
Related tools
Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation