Pounds to Kilograms Converter
1 pound = 0.4535924 kilograms
Type a value in either box: the conversion between pounds (lb) and kilograms (kg) updates instantly.
Good to know
For a quick estimate, divide pounds by 2.2. Gym plates are sold in both systems: a 45 lb plate is about 20.4 kg.
How to convert pounds to kilograms
To convert pounds to kilograms, multiply the number of pounds by 0.4535924. To go the other way, multiply kilograms by 2.204623.
kg = lb × 0.4535924
Worked examples
- 1 lb = 0.4535924 kg
- 10 lb = 4.535924 kg
- 150 lb = 68.03886 kg
- 200 lb = 90.71847 kg
Pounds to Kilograms conversion table
| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1 lb | 0.4535924 kg |
| 2 lb | 0.9071847 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 |
| 15 lb | 6.803886 kg |
| 20 lb | 9.071847 kg |
| 25 lb | 11.33981 kg |
| 30 lb | 13.60777 kg |
| 40 lb | 18.14369 kg |
| 50 lb | 22.67962 kg |
| 75 lb | 34.01943 kg |
| 100 lb | 45.35924 kg |
| 250 lb | 113.3981 kg |
| 500 lb | 226.7962 kg |
| 1,000 lb | 453.5924 kg |
About the units
Pounds (lb)
The pound (lb) is defined as exactly 0.45359237 kilograms. It is the everyday unit of weight in the United States.
Kilograms (kg)
The kilogram (kg) is the SI base unit of mass, defined since 2019 from the Planck constant. It is used worldwide for body weight, food and luggage.
Frequently asked questions
How do I convert pounds to kilograms?
kg = lb × 0.4535924What is 10 lb in kilograms?
How many kilograms are in a pound?
How many pounds are in a kilogram?
Conversion factors use exact international definitions where they exist (for example 1 inch = 2.54 cm and 1 lb = 0.45359237 kg). Results are rounded for display only.