Unit converter
Convert length, mass, temperature, data, area, volume, speed, time, pressure and angle units.
How to use
Pick a category — length, weight, temperature, volume, area, speed, time, digital storage and more — choose the units you're converting from and to, and type a value. The converted result appears instantly and updates as you change the number or units.
It covers the everyday conversions people look up constantly (kilometres to miles, kilograms to pounds, Celsius to Fahrenheit, gigabytes to megabytes) with accurate factors, all computed locally in your browser. Copy the result with one click.
Because it runs offline and stores nothing, it's a fast, private replacement for searching individual conversions one at a time.
Examples
Convert 10 km to miles, or 5 kg to pounds, for travel or recipes.
Switch a weather figure from Celsius to Fahrenheit (or back) instantly.
Convert gigabytes to megabytes when checking storage or bandwidth.
Frequently asked questions
Which units are supported?
Many categories including length, weight/mass, temperature, volume, area, speed, time and digital storage, each with the common units people use day to day.
Are the conversions accurate?
Yes. It uses standard conversion factors and computes results with full precision in your browser.
Does it need an internet connection?
No. All conversions are done locally, so the tool works offline and sends nothing anywhere.
Can I convert temperature, not just multiply units?
Yes. Temperature uses the correct offset formulas (e.g. Celsius to Fahrenheit), not a simple ratio.
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