lb to kg table
| Pounds | Kilograms |
|---|---|
| 1 lb | 0.454 kg |
| 2 lb | 0.907 kg |
| 5 lb | 2.27 kg |
| 10 lb | 4.54 kg |
| 20 lb | 9.07 kg |
| 25 lb | 11.34 kg |
| 50 lb | 22.68 kg |
| 100 lb | 45.36 kg |
| 110 lb | 49.9 kg |
| 120 lb | 54.43 kg |
| 130 lb | 58.97 kg |
| 140 lb | 63.5 kg |
| 150 lb | 68.04 kg |
| 160 lb | 72.57 kg |
| 180 lb | 81.65 kg |
| 200 lb | 90.72 kg |
| 220 lb | 99.79 kg |
| 250 lb | 113.4 kg |
The formula
kilograms = pounds ÷ 2.20462262185
Worked example
150 lb ÷ 2.20462 = 68.0389 kg
The other way round, kilograms to pounds: pounds = kilograms × 2.20462262185.
In your head
Halve it, then take away a tenth of the half. 150 lb → 75 − 7.5 = 67.5 kg. The exact answer is 68.04 kg.
Questions
1 pound is 0.453592 kilograms (0.45359237 exactly).
Divide pounds by 2.20462 to get kilograms. For example, 150 lb ÷ 2.20462 = 68.0389 kg.
Yes. That is the definition of the international pound, agreed in 1959, so this factor is exact, not rounded.
Turn the ounces into pounds first (divide by 16), add them to the pounds, then multiply by 0.45359237. 7 lb 8 oz = 7.5 lb = 3.4 kg.