Weight Converter

Convert kilograms, pounds, ounces, grams and stones in either direction.

The same value in every unit

UnitValue

How to convert weight

  1. Enter the weight in the From box.
  2. Choose the unit it is in, and the unit you want to convert to.
  3. Read the answer in the To box, or scan the table to see every unit at once.

Common weight conversions

FromTo
1 kg2.2046 lb
1 lb453.59 g
1 oz28.35 g
100 g3.53 oz
1 stone6.35 kg (14 lb)
23 kg (common checked bag limit)50.7 lb
7 kg (common cabin bag limit)15.4 lb

Body weight in stones and pounds

If you see a weight like "11 st 4 lb", convert the stones to pounds first (11 × 14 = 154) and add the extra pounds (158 lb total). Then switch the converter to pounds and kilograms to get about 71.7 kg.

Cooking tip

American recipes often measure flour and sugar in cups, which are a volume and not a weight. A cup of flour weighs around 120 to 130 grams, while a cup of sugar is about 200 grams. For baking, weighing ingredients on a kitchen scale is far more reliable. Use our volume converter for liquids.

Frequently asked questions

How many pounds are in a kilogram?

One kilogram is about 2.20462 pounds. For a quick estimate, double the kilograms and add 10 percent: 70 kg × 2 = 140, plus 14 = 154 lb.

How many grams are in an ounce?

One ounce is 28.349523125 grams. Most recipes round this to 28 or 30 grams.

What is a stone?

A stone is 14 pounds, or about 6.35 kg. It is still commonly used in the UK and Ireland for body weight.

What is the difference between a tonne and a ton?

A metric tonne is 1,000 kg. A US (short) ton is 2,000 pounds, about 907 kg. A UK (long) ton is 2,240 pounds, about 1,016 kg. Check which one a document means.