About This Calculator
This calculator converts weight between pounds (lbs) and kilograms (kg). It’s useful for health tracking, travel planning, scientific measurements, and international standards compliance. You can convert both from pounds to kilograms and from kilograms to pounds.
How It Works
The calculator uses standard conversion formulas:
Kilograms = Pounds × 0.453592
Pounds = Kilograms ÷ 0.453592
Pounds to Kilograms Conversion Table
| Pounds (lbs) | Kilograms (kg) |
|---|---|
| 1 lb | 0.45 kg |
| 5 lbs | 2.27 kg |
| 10 lbs | 4.54 kg |
| 20 lbs | 9.07 kg |
| 50 lbs | 22.68 kg |
| 100 lbs | 45.36 kg |
| 150 lbs | 68.04 kg |
| 200 lbs | 90.72 kg |
Frequently Asked Questions
How do I convert pounds to kilograms?
Multiply the value in pounds by 0.453592 to get kilograms.
How do I convert kilograms to pounds?
Multiply the value in kilograms by 2.20462 to get pounds.
Why are kilograms used internationally?
Kilograms are the official SI unit for mass and are widely adopted in science, medicine, and most countries outside the US.