Unit Converter
The Unit Converter switches between metric and imperial units for length, weight, temperature, speed, area, volume, and more - all in one place.
Every everyday conversion
Pick a category, enter a value, and choose your source and target units to convert instantly - kilometres to miles, kilograms to pounds, Celsius to Fahrenheit, litres to gallons, square metres to square feet, and dozens more. It covers the conversions people need for cooking, travel, DIY, study, and work.
Accurate and instant
Conversions use standard factors, and temperature uses the correct formulas (not just a ratio), so results are precise. Because everything runs in your browser, it works even on a patchy connection. For currency, use the dedicated Currency Converter, which needs live rates.
Frequently Asked Questions
What units can it convert?
Length, weight, temperature, speed, area, volume, and more, between metric and imperial systems.
How does it convert temperature?
It uses the proper formulas - for example Celsius to Fahrenheit is (C × 9/5) + 32 - not a simple ratio.
Does it work offline?
Yes. Unit conversions run in your browser, so they keep working once the page has loaded.
Can it convert currency?
No. Currency needs live exchange rates, so use the dedicated Currency Converter for that.
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