Convert Pound (lb) to Kilogram (kg) instantly. Enter any value — result updates live.
Converting Pound to Kilogram is a common weight conversion. One pound (lb) equals 0.453592 kilogram (kg). Pounds are the primary weight unit in the United States for body weight, food, and shipping.
This conversion is commonly needed for cooking and recipe conversions, fitness and body weight tracking, shipping and postage calculations. The kilogram is the base SI unit of mass, used globally in science, commerce, and daily life.
To put pound in perspective: a loaf of bread (about 1 lb). In kilogram, common references include a bag of sugar (1 kg).
The abbreviation 'lb' comes from the Latin word 'libra' which was a Roman unit of weight.
The kilogram was the last SI base unit still defined by a physical artifact (a platinum-iridium cylinder in Paris) until 2019, when it was redefined using the Planck constant.
People frequently convert between pound and kilogram for:
| Pound (lb) | Kilogram (kg) |
|---|---|
| 1 lb | 0.453592 kg |
| 2 lb | 0.907184 kg |
| 5 lb | 2.26796 kg |
| 10 lb | 4.53592 kg |
| 15 lb | 6.80388 kg |
| 20 lb | 9.07184 kg |
| 25 lb | 11.3398 kg |
| 30 lb | 13.6078 kg |
| 50 lb | 22.6796 kg |
| 100 lb | 45.3592 kg |
| 200 lb | 90.7184 kg |
| 500 lb | 226.8 kg |
| 1000 lb | 453.6 kg |