Convert Pounds to Kilograms
Enter the value in pounds to get its exact equivalent in kilograms instantly.
How to convert pounds to kilograms?
To convert a measurement in pounds (lb) to kilograms (kg), we multiply the value by the conversion factor 0.453592.
kg = lb × 0.453592
The pound has been officially defined, since 1959, as exactly 0.45359237 kilograms. It's the everyday unit for body weight in the United States and the United Kingdom, while the rest of the world uses the kilogram.
| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1.00 | 0.4536 |
| 5.00 | 2.27 |
| 10.00 | 4.54 |
| 50.00 | 22.68 |
| 100.00 | 45.36 |
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Frequently Asked Questions
How many kilograms are in 1 pound?
1 lb equals exactly 0.453592 kilograms.
Why does the United States use pounds instead of kilograms?
The United States never officially adopted the metric system for everyday use, and it kept the imperial system (pounds, feet, miles) inherited from the United Kingdom.