Weight / Mass Conversion
Pounds to Kilograms Converter
Pounds are common in the United States while kilograms are the SI standard. One international avoirdupois pound equals exactly 0.45359237 kilograms.
Free Converter
Exact mathPound → Kilogram
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Pounds to Kilograms Converter formula
1 lb = 0.45359237 kg. Multiply the lb value by 0.45359237 to get kg.
Pounds are common in the United States while kilograms are the SI standard. One international avoirdupois pound equals exactly 0.45359237 kilograms.
Pound to Kilogram conversion table
| Pound (lb) | Kilogram (kg) |
|---|---|
| 1 lb | 0.4536 kg |
| 5 lb | 2.268 kg |
| 10 lb | 4.5359 kg |
| 25 lb | 11.3398 kg |
| 50 lb | 22.6796 kg |
| 100 lb | 45.3592 kg |
How to use this conversion
- Enter the amount in Pound.
- Confirm Kilogram is selected as the target unit.
- The result updates instantly; use the swap button to reverse the conversion.
Accuracy and rounding
The underlying conversion uses the stored standard reference factor or built-in formula. Display rounding can be adjusted by the site administrator; for engineering or legal work, retain enough significant digits for your use case.
Conversions are mathematical reference conversions. Regional land units can vary by jurisdiction; use only a locally verified factor for region-dependent units such as bigha.