Weight Converter for Kilograms, Pounds, Grams, Ounces and More

This weight converter helps you convert between common metric and imperial weight units. You can convert kilograms to pounds, pounds to kilograms, grams to ounces, ounces to grams, stone to kilograms, tonnes to pounds, and other supported combinations.

Enter a value, choose the unit you are starting with, and select the unit you want the result in. The calculator shows the converted weight instantly together with several equivalent measurements and simple everyday comparisons.

How to Use the Weight Converter

Type the weight into the first box, choose the original unit, and then choose the unit you want to convert it to. The result updates as you type. You can also use the swap button to reverse the conversion.

This makes it easy to compare metric and imperial measurements without opening separate pages for each type of weight conversion.

Common Weight Conversions

Metric and Imperial Weight Units

Metric weight units commonly include milligrams, grams, kilograms, and metric tonnes. Grams and kilograms are often used for food, packages, body weight, and everyday objects, while tonnes are used for much heavier loads.

Imperial and US customary weight units commonly include ounces and pounds. Stone is also still used for body weight in some places, especially in the United Kingdom. US short tons are used for much heavier weights.

Why Use a Weight Conversion Tool?

A weight calculator can help when shopping, cooking, travelling, shipping packages, comparing product specifications, checking body weight, or reading information that uses a different unit system from the one you normally use.

The comparison tool also gives simple examples using familiar objects. These are approximate comparisons rather than exact measurements, but they can make an unfamiliar weight easier to picture.