Pounds to Kilograms
Convert pounds (lb) to kilograms (kg) instantly.
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| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1 lb | 0.453592 kg |
| 5 lb | 2.267962 kg |
| 10 lb | 4.535924 kg |
| 50 lb | 22.679619 kg |
| 100 lb | 45.359237 kg |
| 150 lb | 68.038855 kg |
| 200 lb | 90.718474 kg |
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Pounds to kilograms: the conversion explained
The pound is the primary unit of mass in the United States and still used in the UK for body weight. One pound equals exactly 0.45359237 kilograms — a precise value established by international agreement in 1959.
To convert lbs to kg, divide by 2.20462. For a quick mental estimate, dividing by 2.2 is accurate to within 0.3% — sufficient for everyday use like reading product weights or comparing gym metrics.
Common values: 100 lbs = 45.4 kg, 150 lbs = 68.0 kg, 200 lbs = 90.7 kg. Sports weight classes and equipment are often listed in lbs in American contexts and kg internationally, making this conversion essential for athletes and coaches working across borders.
Frequently asked questions
How many kilograms in a pound?
There are 0.453592 kilograms in one pound.