Unit Converter
Length, weight, temperature, volume, speed, area, data & time — converted live as you type.
1 m = 1 m
Every conversion runs in your browser — the tool works offline and nothing is uploaded.
How to use it
- Pick a category — length, weight, temperature, volume, speed, area, digital storage or time.
- Type a value and choose the from and to units.
- The result updates instantly. Hit ⇆ to swap the two units around.
About this tool
A quick, no-nonsense converter for the units you actually reach for — kilometres to miles, kilograms to pounds, Celsius to Fahrenheit, litres to gallons, and plenty more. Each unit is defined by its exact international value, so 1 inch is 2.54 cm and 1 mile is 1609.344 m, not a rounded approximation.
Temperature is handled separately with the proper Celsius / Fahrenheit / Kelvin formulas, since those scales don't share a zero point. Everything happens in-browser: no ads, no sign-up, nothing uploaded.
FAQ
How accurate are the conversions?
Each unit uses its exact international definition — for example 1 inch = 2.54 cm, 1 mile = 1609.344 m and 1 lb = 0.45359237 kg — so results are precise, then trimmed to a sensible number of digits for readability.
How is temperature converted?
Temperature can't use a single multiplier because the scales have different zero points, so Celsius, Fahrenheit and Kelvin are converted with their proper formulas rather than a factor.
Does anything get uploaded?
No. Every conversion runs in your browser with JavaScript, so the tool works offline and none of your numbers are ever sent anywhere.