Lbs to Kg Converter

Convert pounds to kilograms instantly. Free lbs to kg converter with quick reference table, formula, and common weight conversions for fitness, travel, and shipping.

0.453592
Kilogram (kg)
Input Value
1 lb (Pound)
The avoirdupois pound, equal to 0.4536 kg. Common in US/UK.

How to Convert Pound to Kilogram

Simple formula with a worked example

To convert pound (lb) to kilogram (kg), use this formula:

kg = lbs × 0.453592

Example: Convert 10 lb to kg

10 lb = 4.5359 kg

To convert back, use: lbs = kg × 2.20462

Pound to Kilogram Conversion Table

Quick reference for common pound to kilogram conversions

Pound (lb)Kilogram (kg)
1 lb0.453592 kg
2 lb0.907185 kg
5 lb2.268 kg
10 lb4.5359 kg
25 lb11.3398 kg
50 lb22.6796 kg
100 lb45.3592 kg
250 lb113.3981 kg
500 lb226.7962 kg
1,000 lb453.5924 kg

About Pound and Kilogram

Understanding these weight units

Pound (lb)

The avoirdupois pound, equal to 0.4536 kg. Common in US/UK.

Kilogram (kg)

The SI base unit of mass, used worldwide for general weighing.

When You Need This Conversion

  • international travel
  • fitness and health
  • shipping overseas
  • recipe conversion

Did you know? The kilogram is the only SI base unit still defined by a physical artifact — until 2019, when it was redefined using the Planck constant.

Frequently Asked Questions

Common questions about converting pound to kilogram

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