Converts between the units people actually look up, across six categories. Temperature is handled with proper offsets rather than a single multiplier — the reason many converters will happily tell you 0 °C is 0 °F.
Runs entirely in your browser
A single converter for the measurements people actually look up: length, weight, temperature, volume, data and speed. Rather than hunting for a separate page per conversion, you pick a category and convert between its units directly — kilometres to miles, kilograms to pounds, litres to gallons, megabytes to gigabytes and so on.
Temperature is the one that trips up naive converters, and this one handles it properly. Celsius, Fahrenheit and Kelvin do not relate by a single multiplier — they have different zero points — so converting requires an offset as well as a scale. That is why a careless converter will tell you 0 °C is 0 °F; here the offsets are applied correctly.
Everything is computed in your browser, so conversions are instant and nothing is sent anywhere. It is built for quick, everyday lookups where you just need the right number without ceremony.
TechToolsHQ is an independent, reader-supported tech platform. If this free tool saved you time, solved a problem, or helped your workflow, consider supporting our work. Your support helps us keep our utilities 100% free, private, and ad-free for everyone.