Weight & mass

Convert pounds to kilograms

Enter a value in pounds to see the exact equivalent in kilograms. 1 lb = 0.453592 kg.

The conversion

1 pound equals exactly 0.45359237 kilograms. The converter keeps full precision and rounds only what it shows.

Formula: Multiply the number of pounds by 0.45359237 to get kilograms.

Going the other way, 1 kilogram = 2.204622622 pounds.

Quick reference

Pound Kilogram
1 lb 0.4536 kg
2 lb 0.9072 kg
5 lb 2.268 kg
10 lb 4.5359 kg
25 lb 11.3398 kg
50 lb 22.6796 kg
100 lb 45.3592 kg

FAQ

How many kilograms are in 1 pound?

1 pound = 0.453592 kilograms (rounded). The exact factor is 0.45359237.

What is the formula to convert pounds to kilograms?

Multiply the number of pounds by 0.45359237 to get kilograms.

Is this pounds-to-kilograms conversion exact?

1 pound equals exactly 0.45359237 kilograms. The converter keeps full precision and rounds only what it shows.