Pound to Kilogram
Free instant pound to kilogram converter. 1 lb = 0.453592 kg.
Common Pound to Kilogram values
| Pound (lb) | Kilogram (kg) |
|---|---|
| 1 | 0.453592 |
| 5 | 2.26796 |
| 10 | 4.53592 |
| 25 | 11.3398 |
| 50 | 22.6796 |
| 100 | 45.3592 |
| 500 | 226.796 |
| 1000 | 453.592 |
How does Pound to Kilogram conversion work?
Type a value in the Pound (lb) field and the equivalent in Kilogram (kg) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.
Pound. The standard imperial weight unit. Defined as exactly 0.45359237 kg since 1959.
Kilogram. The SI base unit of mass. About the weight of a litre of water.
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Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.
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