How to convert pounds to kilograms
Pounds and Kilograms both measure weight, so converting is a single multiplication. One lb equals 0.453592 kg, so you multiply your pounds value by 0.453592.
Formula: kilograms = pounds × 0.453592. For example, 10 lb = 4.53592 kg.
Pounds to Kilograms conversion table
| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1 | 0.453592 |
| 2 | 0.907184 |
| 5 | 2.26796 |
| 10 | 4.53592 |
| 25 | 11.3398 |
| 50 | 22.6796 |
| 100 | 45.3592 |
| 1,000 | 453.592 |
Pounds and Kilograms explained
Pounds (lb): Sixteen ounces (453.592 g), the everyday imperial unit of weight in the US and UK.
Kilograms (kg): One thousand grams, the SI base unit of mass and the everyday metric weight.
When you'd convert pounds to kilograms
You'll convert pounds to kilograms whenever a measurement is given in one unit but you need it in the other — comparing pounds and kilograms figures across regions, following a recipe or spec, or double-checking a number. Because 1 lb is exactly 0.453592 kg, the result is precise every time.
Frequently asked questions
How many kilograms are in a pound?
One lb equals 0.453592 kg. Multiply your pounds figure by 0.453592 to get kilograms.
What is the formula to convert pounds to kilograms?
kilograms = pounds × 0.453592. The factor 0.453592 is exact.
What is 2 pounds in kilograms?
2 lb = 0.907184 kg. You can enter any value in the converter above to get an instant result.
Is this Pounds to Kilograms converter accurate?
Yes. It uses the standard conversion factor (1 lb = 0.453592 kg) defined by BIPM — SI Brochure (definition of the kilogram), so results are exact to several decimal places.