Convert a weight into every unit at once
A weight converter turns one weight measurement into every other common unit at once — milligrams, grams, kilograms, tonnes, ounces, pounds, and stone — so you don't have to look up or calculate each conversion factor separately.
Enter a value.
Pick the unit it's currently in.
Every other unit updates instantly below.
Convert grams and ounces between US and metric recipe measurements.
Switch between kilograms, pounds, and stone for tracking or fitness goals.
Convert package weight for a shipping form or customs declaration.
Technically these units measure mass, not weight, though "weight" is what most people search for and how these units get used day to day — on a bathroom scale or a shipping label, the numbers work out the same either way.
1 kilogram equals 2.2046 pounds, and 1 pound equals 0.45359237 kilograms exactly — that figure is the internationally defined exact conversion.
1 stone equals 14 pounds exactly, a unit still commonly used for body weight in the UK and Ireland.
Technically mass, though "weight" is what most people search for and how these units are used day to day. On Earth's surface the distinction doesn't affect the numbers you'd read off a scale.
No. Nothing is saved or sent anywhere — everything runs in your browser and clears when you refresh or close the page.
Converting something else? Try the Length Converter or Temperature Converter.