Convert pounds to kilograms
Enter a value in pounds (lb) to get kilograms (kg). One pound is 0.453592 kilograms; one kilogram is 2.2046 pounds.
How to use the Pound to kilogram
- Type the number of pounds.
- Click Convert.
- Read the result in kilograms, plus the same value in every other weight & mass unit.
lb to kg formula
kilograms = pounds × 0.453592. To go the other way, pounds = kilograms × 2.2046 (see kilograms to pounds).
Worked example
12 lb × 0.453592 = 5.4431 kg.
Pounds to kilograms conversion table
| Pounds | Kilograms |
|---|---|
| 0.1 lb | 0.045359 kg |
| 0.5 lb | 0.226796 kg |
| 1 lb | 0.453592 kg |
| 2 lb | 0.907185 kg |
| 3 lb | 1.3608 kg |
| 5 lb | 2.268 kg |
| 10 lb | 4.5359 kg |
| 20 lb | 9.0718 kg |
| 25 lb | 11.3398 kg |
| 50 lb | 22.6796 kg |
| 100 lb | 45.3592 kg |
| 250 lb | 113.3981 kg |
| 500 lb | 226.7962 kg |
| 1,000 lb | 453.5924 kg |
About the pound
Exactly 0.45359237 kg. Body weight and groceries in the USA; body weight in the UK alongside stones.
About the kilogram
The SI base unit of mass, defined since 2019 via the Planck constant.
Related conversions
kilograms to pounds · pounds to ounces · pounds to stones · any unit.
Frequently asked questions
How many kilograms in a pound?
0.453592 kilograms.
How many pounds in a kilogram?
2.2046 pounds.
Is the factor exact?
The factor 0.453592 is derived from the units' exact definitions; only the display is rounded.
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Last updated 2026-09-23.