Convert weight and mass between kilograms, grams, pounds, ounces, stone and tonnes.
What this calculator does
Enter a value and pick the units to convert between metric and imperial weight. It covers everyday units plus stone and tonnes.
Handy for cooking, shipping, fitness and travel.
Try it with these numbers
Take the starting scenario, a value of 1. That gives a result of 2.2046. Alongside it, Input comes out at 1 kg. Change any field and every figure updates as you type.
How to fill it in
- Enter the value.
- Choose the from and to units.
- Read the converted weight.
The maths behind it
each unit converts through kilograms as the base
FAQ
How many pounds in a kilogram?
About 2.205 pounds per kilogram.
What is a stone?
A British unit equal to 14 pounds, or about 6.35 kilograms, often used for body weight.
Is mass the same as weight?
In everyday use they’re used interchangeably; strictly, mass is the amount of matter and weight is the force of gravity on it.