Weight & Mass conversion
Pound to Kilogram
1 lb =0.45359237kg
0.45359237
1 lb =0.45359237 kg
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About Pound to Kilogram
Pounds to kilograms is essential for anyone moving between the imperial system used in the US and the metric system used almost everywhere else. The conversion is exact: 1 pound is defined as exactly 0.45359237 kilograms.
Formula
Kilograms = Pounds × 0.45359237. For quick estimates, divide pounds by 2.2.
Worked example
150 lbs × 0.4536 = 68.04 kg. A person weighing 150 pounds weighs about 68 kilograms.
Pound to Kilogram table
| Pound (lb) | Kilogram (kg) |
|---|---|
| 1 | 0.45359237 |
| 10 | 4.5359237 |
| 50 | 22.6796185 |
| 100 | 45.359237 |
| 120 | 54.4310844 |
| 150 | 68.0388555 |
| 180 | 81.6466266 |
| 200 | 90.718474 |
| 250 | 113.3980925 |
| 300 | 136.077711 |
Common use cases
- 01Filling out international shipping forms
- 02Reading body weight in metric for medical contexts
- 03Translating fitness program weights into kg plates
- 04Cooking from US recipes when you have a metric scale
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Frequently asked questions
How many kg is 100 lbs?+
100 lbs = 45.36 kg.
How many kg is 200 lbs?+
200 lbs = 90.72 kg.
Is 1 lb close to half a kilo?+
Yes — 1 lb is 0.4536 kg, just under half a kilogram.
Need the reverse?
Convert Kilogram to Pound →