Weight Converter
One kilogram equals 2.20462 pounds, and one pound is exactly 0.45359237 kilograms. This weight converter switches between milligrams, grams, kilograms, tonnes, ounces, pounds and stone as you type, using the international avoirdupois definitions, so 1 ounce = 28.3495 grams and 1 stone = 14 pounds.
1 kg = 2.204623 lb
How to use the Weight Converter
- Type a weight in the From box. It starts at 70 kilograms.
- Choose the From and To units from the unit menus, for example kg and lb.
- Read the converted weight in the To box, or type there to convert the other way.
- Use the swap button to flip the units, and the chips below to see the same weight in every other unit.
Formula
result = value × (from-unit in kg) ÷ (to-unit in kg)All units convert through kilograms: 1 mg = 0.000001 kg, 1 g = 0.001 kg, 1 tonne = 1,000 kg, 1 oz = 0.028349523125 kg, 1 lb = 0.45359237 kg and 1 stone = 6.35029318 kg.
Common weight conversions
- 1 kg = 2.20462 lb
- 1 lb = 0.453592 kg
- 1 oz = 28.3495 g
- 1 stone = 14 lb = 6.35029 kg
- 1 tonne = 1,000 kg = 2,204.62 lb
- 5 kg = 11.023 lb = 176.37 oz
Weight and mass
Strictly, kilograms and pounds measure mass, the amount of matter in an object. Weight is the force of gravity on that mass and is measured in newtons. In everyday use the two words mean the same thing, and on Earth 1 kg of mass weighs about 9.8 N.
Weight Converter questions
How many pounds are in a kilogram?
One kilogram is 2.20462 pounds. Multiply kilograms by 2.20462 to get pounds, or multiply pounds by 0.453592 to get kilograms. For example, 70 kg is 154.3 lb. This conversion comes up constantly for body weight, luggage and shipping. Airline baggage limits, such as 23 kg, are about 50.7 pounds.
How do I convert ounces to grams for cooking?
Multiply ounces by 28.35 to get grams, since one ounce is 28.3495 g. Common values: 2 oz is 57 g, 4 oz is 113 g, 8 oz is 227 g and 16 oz (1 lb) is 454 g. Weighing ingredients gives more consistent baking results than measuring by volume.
How many pounds are in a stone?
One stone is exactly 14 pounds, or 6.35 kilograms. The stone is still used for body weight in the UK and Ireland. For example, 11 stone is 154 pounds or about 69.9 kg. To convert stone to kilograms directly, multiply by 6.35029, so 12 stone 7 pounds is about 79.4 kg.
What is the difference between weight and mass?
Mass is the amount of matter in an object and is measured in kilograms or grams; weight is the force gravity exerts on that mass and is measured in newtons. Mass stays the same everywhere, while weight changes with gravity. In daily life, "weight" usually means mass.
What is the difference between a metric ton, a US ton and a UK ton?
A metric ton (tonne) is 1,000 kg or 2,204.6 lb. A US short ton is 2,000 lb or 907.2 kg. A UK long ton is 2,240 lb or 1,016 kg. Freight is usually quoted in metric tonnes, so check which ton a document means.
What is a troy ounce?
A troy ounce is 31.1035 grams, about 10% heavier than the regular avoirdupois ounce of 28.3495 g. Troy ounces are used only for precious metals such as gold, silver and platinum. This converter uses the regular ounce. A troy pound has 12 troy ounces rather than 16, so it is lighter than a regular pound.
What weight units are used in medicine?
Medicine uses metric units: milligrams, grams and kilograms. 1 g = 1,000 mg and 1 kg = 1,000 g, and doses are often calculated per kilogram of body weight. Always use exact values for medication and never round a conversion when dosing.
How many grams is a carat?
One carat is exactly 200 milligrams, or 0.2 grams, so a 5 carat gemstone weighs 1 gram. Carats measure gemstones and pearls. Do not confuse them with karats, which describe the purity of gold. Gemstone prices are quoted per carat, so even small weighing errors change the value.