Pounds to Kilograms Converter
Convert pounds (lb) to kilograms (kg) instantly. Type a value above and the result updates while you type. 1 pound equals 0.453592 kilograms.
Result updates as you type. Values are calculated locally in your browser — nothing is sent to a server.
The formula
1 pound = 0.453592 kilograms
Multiply the pounds value by 0.453592 to get kilograms. Or divide by 2.20462 to go the other way.
Pounds to kilograms conversion table
| lb | kg |
|---|---|
| 1 | 0.453592 |
| 2 | 0.907185 |
| 3 | 1.36078 |
| 4 | 1.81437 |
| 5 | 2.26796 |
| 6 | 2.72155 |
| 7 | 3.17515 |
| 8 | 3.62874 |
| 9 | 4.08233 |
| 10 | 4.53592 |
| 15 | 6.80389 |
| 20 | 9.07185 |
| 25 | 11.3398 |
| 50 | 22.6796 |
| 75 | 34.0194 |
| 100 | 45.3592 |
Worked examples
- 10 lb × 0.453592 = 4.53592 kg
- 150 lb × 0.453592 = 68.0389 kg
- 220 lb × 0.453592 = 99.7903 kg
Conversion factors follow the exact international definitions (SI/BIPM; imperial units per the 1959 International Yard and Pound Agreement, maintained by NIST). NIST unit conversion reference
Factors last verified August 2026 · Built by Jeffrey Tepper.
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Frequently asked questions
How many kilograms are in 1 pound?
1 pound equals 0.453592 kilograms (lb → kg).
How do you convert pounds to kilograms?
Multiply the number of pounds by 0.453592. For example: 10 lb × 0.453592 = 4.53592 kg.
What is 150 lb in kg?
150 lb equals 68.0389 kg.
Which is bigger: 1 pound or 1 kilogram?
1 kilogram is bigger: 1 pound is only 0.453592 kilograms.