Weight converter
Unit conversionHow much does that weigh in other units?
Convert between kilograms, grams, pounds, ounces, stone, tons, carats and more, exactly.
What you enter stays on your device while you use this tool. Opening a shared link sends the settings in its address to HowToolbox to prepare the page.
Result
2.205 lb
1 kilogram is about 2.205 pounds
- Exact by definition: 1 lb = 0.45359237 kg.
In all units
- Milligrams
- 1,000,000 mg
- Grams
- 1,000 g
- Kilograms
- 1 kg
- Tonnes
- 0.001 t
- Carats
- 5,000 ct
- Grains
- 15,430 gr
- Ounces
- 35.27 oz
- Pounds
- 2.205 lb
- Stone
- 0.1575 st
- Short tons (US)
- 0.001102 ton (US)
- Long tons (UK)
- 0.0009842 ton (UK)
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Convert between kilograms, grams, pounds, ounces, stone, tons, carats and more, exactly.
How to use
- Type the weight you want to convert.
- Choose the units to convert from and to. Use the swap button to flip them.
Body weights in pounds
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How it works
Every unit is converted through kilograms using exact definitions: a gram is 0.001 kg, a tonne is 1,000 kg, a pound is exactly 0.45359237 kg, an ounce is 1/16 of a pound, a stone is 14 pounds, a US short ton 2,000 pounds and a UK long ton 2,240 pounds. A metric carat is 0.2 g and a grain is 1/7000 of a pound (64.79891 mg). So 1 kg is 1 ÷ 0.45359237 ≈ 2.20462 lb, and 100 kg is about 220.46 lb.
The pound and ounce are the avoirdupois units of the international yard and pound agreement of 1959, as given in NIST Special Publication 811 and the UK Weights and Measures Act 1985. The tonne is defined in the BIPM SI Brochure.
Strictly, these units measure mass. Everyday “weight” in kilograms or pounds means mass too, so the conversion is the same anywhere on Earth.
Frequently asked questions
How many pounds are in a kilogram?
About 2.20462 lb. Multiply kilograms by 2.20462, or divide by 0.45359237, to get pounds.
How many grams are in an ounce?
About 28.35 g. An ounce is exactly 1/16 of 0.45359237 kg, which is 28.349523125 g.
Is a tonne the same as a ton?
No. A tonne (metric ton) is 1,000 kg. The US short ton (2,000 lb) and the British long ton (2,240 lb) are different units.
Are troy ounces supported?
No. The ounce here is the avoirdupois ounce used for food and body weight. Gold and silver are weighed in troy ounces, about 31.1 g.
How do I convert stone and pounds to kilograms?
Multiply the stone count by 14 and add the remaining pounds, then convert that total from lb to kg. For example, 10 st 5 lb is 145 lb, about 65.77 kg.
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