Convert Pounds to Kilograms
One pound equals 0.453592 kilograms. Type any value to convert pounds to kilograms instantly — with a full reference table below.
Convert Pounds to Kilograms
Converted in your browser — nothing you enter is sent anywhere.
How to convert Pounds to Kilograms
To convert pounds to kilograms, multiply by 0.453592. One pound equals 0.453592 kg, and one kilogram equals 2.204623 lb.
- Take the value in pounds — for example 7.5 lb.
- Multiply by 0.453592 (the number of kilograms in one pound).
- 7.5 × 0.453592 = 3.401943 kg.
Quick mental estimate: Divide the number of pounds by 2.2 (within 0.2% of the exact answer).
Pounds to Kilograms conversion table
| Pounds | Kilograms |
|---|---|
| 1 lb | 0.453592 kg |
| 2 lb | 0.907185 kg |
| 3 lb | 1.360777 kg |
| 4 lb | 1.814369 kg |
| 5 lb | 2.267962 kg |
| 6 lb | 2.721554 kg |
| 7 lb | 3.175147 kg |
| 8 lb | 3.628739 kg |
| 9 lb | 4.082331 kg |
| 10 lb | 4.535924 kg |
| 12 lb | 5.443108 kg |
| 15 lb | 6.803886 kg |
| 20 lb | 9.071847 kg |
| 25 lb | 11.33981 kg |
| 50 lb | 22.67962 kg |
| 100 lb | 45.35924 kg |
| Kilograms | Pounds |
|---|---|
| 1 kg | 2.204623 lb |
| 2 kg | 4.409245 lb |
| 3 kg | 6.613868 lb |
| 4 kg | 8.81849 lb |
| 5 kg | 11.02311 lb |
| 6 kg | 13.22774 lb |
| 7 kg | 15.43236 lb |
| 8 kg | 17.63698 lb |
| 9 kg | 19.8416 lb |
| 10 kg | 22.04623 lb |
| 12 kg | 26.45547 lb |
| 15 kg | 33.06934 lb |
| 20 kg | 44.09245 lb |
| 25 kg | 55.11557 lb |
| 50 kg | 110.2311 lb |
| 100 kg | 220.4623 lb |
About converting Pounds to Kilograms
Pounds (lb) and Kilograms (kg) are both units of weight. The exact factor is 1 lb = 0.453592 kg, so multiply by 0.453592 to go from pounds to kilograms (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Kilograms to Pounds converter, or the full unit converter for every unit at once.
Real-world weight in pounds and kilograms
| Example | Pounds | Kilograms |
|---|---|---|
| 1 litre of water | ≈ 2.204623 lb | ≈ 1 kg |
| An Olympic men's barbell | 44.09245 lb | 20 kg |
| A typical checked-bag limit (economy) | ≈ 50.70632 lb | ≈ 23 kg |
| A typical family car | ≈ 3,306.934 lb | ≈ 1,500 kg |
“≈” marks typical values; the rest are defined or measured figures.
The units
The avoirdupois pound: exactly 0.45359237 kg.
Used for: Body weight and groceries in the US; body weight in the UK alongside stone.
The SI base unit of mass, defined since 2019 by fixing the Planck constant at 6.62607015 × 10⁻³⁴ J·s.
Used for: Body weight and goods almost everywhere.
These factors are exact: since 1959 the avoirdupois pound is defined as exactly 0.45359237 kg, and the ounce as 1/16 of that.