Weight Converter
Convert between metric and imperial weight units instantly.
Your conversions appear here
Enter a weight and pick its unit. Every other unit is calculated live as you type — right here in your browser, with nothing sent to a server.
Runs entirely in your browserConvert any weight unit, locally
This converter turns a single weight value into every other supported unit at once. Type a number, choose the unit it is in, and the full conversion table updates as you type. It covers metric units — tonne, kilogram, gram, milligram — and imperial units — pound, ounce and stone. Each conversion goes through kilograms as a common base, so results stay consistent no matter which unit you start from. Everything runs in your browser and nothing you type is uploaded anywhere.
Common questions
How many pounds are in a kilogram?
One kilogram is about 2.20462 pounds. Enter 1 and select kilogram, and the results list shows pounds, ounces and stone at the same time.
How do I convert stone to kilograms?
Type your weight, select stone as the unit, and read the kilogram row. One stone equals about 6.35029 kilograms (14 pounds).
Which units does this weight converter support?
Metric tonne (t), kilogram (kg), gram (g), milligram (mg), pound (lb), ounce (oz) and stone (st).
Why do I see “—” instead of results?
That appears when the value box is empty or is not a valid number. Enter a finite number and the full conversion list appears instantly.
Are the values I type sent anywhere?
No. All conversions run entirely in your browser with JavaScript. Nothing you enter is uploaded or stored on a server.