Convert kilograms to pounds, and back, instantly.
Type a weight in kilograms to see the exact value in pounds, updated as you type. The pounds field works in reverse too, so you can go either direction and copy the result in one click.
Your weight
1 kg = 2.20462 lbs. Type in either field and the other follows.
What this means
Common kilogram values in pounds
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Kilograms and pounds explained
The Kilogram-to-Pound Conversion Factor
One kilogram equals approximately 2.2046 pounds. Equivalently, 1 pound = 0.4536 kg. The avoirdupois pound (the standard US/UK pound) is defined as exactly 0.45359237 kg, making the conversion an exact relationship. To convert kg to lbs, multiply by 2.2046.
Why Both Units Coexist
Kilograms are the SI unit of mass, used in science worldwide and as the everyday weight unit in most countries. Pounds remain the everyday unit in the United States, the UK (alongside kg), and a few smaller territories. International shipping, gym equipment, and global sports often display both.
Reference Conversions
1 kg = 2.205 lbs. 5 kg = 11.02 lbs. 10 kg = 22.05 lbs. 25 kg = 55.12 lbs (a standard barbell plate). 50 kg = 110.23 lbs. 100 kg = 220.46 lbs. A typical adult weighs 50-100 kg (110-220 lbs).
Precision in Different Contexts
For body weight or cooking, 1 decimal is plenty (e.g., 70.5 kg = 155.4 lbs). For shipping, use 2 decimals to avoid rounding errors on multi-package totals. For pharmaceuticals or science, use the full conversion factor (2.20462262).
Common questions
How many pounds is 70 kg?
70 kg equals 154.32 pounds (70 × 2.2046).
Is 1 kg exactly 2.2 pounds?
No, 1 kg = 2.20462262 lbs. The 2.2 figure is a rough approximation, accurate within 0.2%. For precise values use the full factor.
How is the pound defined?
Since 1959, the international avoirdupois pound is defined as exactly 0.45359237 kg. This is the standard US, UK, Canada, and Commonwealth pound.
Are British and American pounds the same?
Yes, both use the avoirdupois pound (0.45359237 kg). The British 'stone' (= 14 lbs = 6.35 kg) is a separate unit not used in the US.
What about troy ounces / pounds?
Troy units are different, used for precious metals. 1 troy lb = 0.3732 kg (lighter than avoirdupois). This calculator uses standard avoirdupois pounds.
All conversion runs in your browser. Nothing is uploaded. Kilograms measure mass, pounds are used for everyday weight, and both describe the same object with the exact factor 1 lb = 0.45359237 kg.