How to convert pounds to kilograms
1 lb = 0.45359237 kg
1 lb = 0.45359237 kg exactly (NIST Handbook 44; UK Weights and Measures Act 1985). Multiply pounds by 0.45359237 to get kilograms.
Examples
- 70 lb = 31.751466 kg: Heaviest mailpiece the US Postal Service accepts (USPS)
- 50 lb = 22.679619 kg: Weight above which Delta charges overweight bag fees (Delta Air Lines)
- 2 lb = 0.90718474 kg: Upper end of the NHS's suggested weekly weight loss (NHS)
Lbs to kg chart
| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1 lb | 0.45359237 kg |
| 2 lb | 0.90718474 kg |
| 3 lb | 1.3607771 kg |
| 4 lb | 1.8143695 kg |
| 5 lb | 2.2679619 kg |
| 10 lb | 4.5359237 kg |
| 15 lb | 6.8038856 kg |
| 20 lb | 9.0718474 kg |
| 25 lb | 11.339809 kg |
| 50 lb | 22.679619 kg |
| 70 lb | 31.751466 kg |
| 75 lb | 34.019428 kg |
| 100 lb | 45.359237 kg |
Common mistakes
- "lbs" is simply the plural abbreviation; lb and lbs both mean the avoirdupois pound of 16 ounces.
- A troy pound (12 troy ounces, about 373.24 g) is lighter than the everyday pound. Use the avoirdupois pound unless a weight says troy.