Pounds to Kilograms
Convert pounds (lb) to kilograms (kg) instantly — with formula and reference table.
Quick answer: 1 lb = 0.453592 kg. To convert pounds to kilograms, multiply by lb × 0.453592.
Converting pounds to kilograms
This converter changes a value in pounds (lb) into kilograms (kg). One pound equals 0.453592 kg. To go from pounds to kilograms, multiply by 0.45359237 (or divide by 2.20462). The pound is defined as exactly 0.45359237 kilograms. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
kg = lb × 0.453592
Example
Convert 10 lb to kg: 10 × 0.453592 = 4.535924 kg.
Pounds to Kilograms conversion table
| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1 lb | 0.453592 kg |
| 2 lb | 0.907185 kg |
| 3 lb | 1.360777 kg |
| 5 lb | 2.267962 kg |
| 10 lb | 4.535924 kg |
| 20 lb | 9.071847 kg |
| 25 lb | 11.339809 kg |
| 50 lb | 22.679619 kg |
| 100 lb | 45.359237 kg |
Popular pounds to kilograms conversions
Quick answers for the lb values people look up most often:
- 110 lb = 49.8952 kg
- 120 lb = 54.4311 kg
- 130 lb = 58.967 kg
- 140 lb = 63.5029 kg
- 145 lb = 65.7709 kg
- 150 lb = 68.0389 kg
- 155 lb = 70.3068 kg
- 160 lb = 72.5748 kg
- 165 lb = 74.8427 kg
- 170 lb = 77.1107 kg
- 175 lb = 79.3787 kg
- 180 lb = 81.6466 kg
- 190 lb = 86.1826 kg
- 200 lb = 90.7185 kg
- 220 lb = 99.7903 kg
- 250 lb = 113.3981 kg
How to use this converter
- Enter a value in the pounds (lb) field.
- Read the converted value in kilograms (kg) below.
- Type into the kg field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many kilograms are in a pound?
1 pound equals exactly 0.45359237 kilograms — roughly 0.4536 kg.
How do I convert 150 lb to kg?
150 × 0.45359237 = 68.04 kg.
Why is the pound defined in terms of the kilogram?
Since 1959 the international avoirdupois pound has been legally defined as exactly 0.45359237 kg, tying it to the SI standard.