Convert lb to kg
A practical reference for converting pounds (lb) to kilograms (kg), a weight unit. Type any value for an instant result, or use the reference table below.
1 lb = 0.453592 kg
kg = lb × 0.45359237
Conversion formula
kg = lb × 0.45359237Divide pounds by 2.2. Often needed for international shipping weights.
Quick reference table
| pounds | kilograms |
|---|---|
| 1 lb | 0.4536 kg |
| 5 lb | 2.268 kg |
| 10 lb | 4.5359 kg |
| 20 lb | 9.0718 kg |
| 50 lb | 22.6796 kg |
| 100 lb | 45.3592 kg |
| 120 lb | 54.4311 kg |
| 150 lb | 68.0389 kg |
| 180 lb | 81.6466 kg |
| 200 lb | 90.7185 kg |
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Open Unit ConverterFrequently asked questions
How many kg is 1 lb?
1 lb equals 0.453592 kg.
Why does my result differ slightly from other sites?
Rounding. This page displays four decimal places while the underlying calculation keeps full precision.
Is my input sent to a server?
No. Every calculation runs locally in your browser and nothing is transmitted.
All calculations on this page run in your browser. Your input is never sent to a server.