Pounds to Kilograms
Convert pounds to kilograms for body weight, shipping, food labels, and everyday US-to-metric measurements.
How to convert lb to kg
To convert a value from pounds (lb) to kilograms (kg), enter the number in the converter above. Use the swap control if you need the reverse direction.
x is the source value in lb; y is the result in kg.
Popular conversions
Quick answers for common lb to kg values are available from the related conversion pages.
Use the related tools section for fixed-value conversions and the reverse direction.
Common conversion table
Quick reference table for common lb to kg values:
| lb | kg |
|---|---|
| 1 | 0.453592 |
| 5 | 2.26796 |
| 10 | 4.53592 |
| 50 | 22.6796 |
| 100 | 45.3592 |
| 1,000 | 453.592 |
About pounds
Pound (lb) — One international avoirdupois pound is exactly 0.45359237 kilograms.
Common uses: Pounds are widely used in the United States for body weight, groceries, parcels, and product weights.
About kilograms
Kilogram (kg) — The kilogram is the SI base unit of mass and is defined through the fixed numerical value of the Planck constant.
Common uses: Kilograms are the everyday metric weight unit for body weight, shipping, food labels, science, and trade.
Frequently Asked Questions
Related Tools
Convert kilograms to pounds instantly with the standard international factor, formula, examples, and a quick conversion table.
Convert grams to avoirdupois ounces for recipes, food labels, parcels, and product weights without confusing weight ounces with fluid ounces.
Convert avoirdupois ounces to grams for cooking, nutrition labels, shipping weights, and product specifications.
Convert metric tons, also called tonnes, to kilograms. This calculator does not use the US short ton.
Convert kilograms to metric tons, also called tonnes, for freight, bulk materials, and metric weight reports.