Lbs to KG Converter
Convert pounds to kilograms in your browser. A pound is exactly 0.45359237 kg, so bodyweight and parcel weights map straight to metric.
How to convert lbs to kg
- Enter the weight in pounds into the box above.
- The kilogram equivalent updates live as you type.
- Switch either dropdown to convert between any weight unit on this site.
The formula
Kilograms are found by multiplying pounds by 0.45359237:
kilograms = pounds × 0.45359237
Reversed, pounds = kilograms × 2.2046226218.
Common lbs to kg values
| Pounds | Kilograms |
|---|---|
| 1 lb | 0.4536 kg |
| 10 lb | 4.5359 kg |
| 50 lb | 22.6796 kg |
| 100 lb | 45.3592 kg |
| 150 lb | 68.0389 kg |
| 200 lb | 90.7185 kg |
Related tools
- KG to Lbs converter — go the other way.
- Inches to CM converter — for length conversions.
Frequently asked questions
- How do I convert pounds to kilograms?
- Multiply the pound value by 0.45359237. For example, 150 lb × 0.45359237 ≈ 68.04 kg. The converter above shows the result as you type.
- How many kilograms are in a pound?
- Exactly 0.45359237 kilograms make up one pound — this is the internationally agreed definition, not an approximation.
- What is 200 lb in kg?
- 200 lb is about 90.72 kg (200 × 0.45359237).
- Why is 0.45359237 the exact conversion factor?
- Since a 1959 international agreement, the pound has been legally defined as exactly 0.45359237 kilograms, replacing older, slightly different national definitions.
- Is this useful for converting bodyweight or luggage weight?
- Yes — the same exact ratio applies whether you’re converting bodyweight, luggage allowances, or shipping weights between imperial and metric.
- Does this tool store or transmit my weight data?
- No. Everything is computed locally in your browser — nothing you enter is sent to a server or saved.