How do I convert pounds to kilograms?

Multiply pounds by 0.45359237 to get kilograms. 150 lb × 0.45359 ≈ 68.04 kg.

How do I convert kilograms back to pounds?

Use the swap button, or apply the reverse factor: kg × 2.20462 = lb.

Yes. 1 lb = 0.45359237 kg exactly.

Convert pounds to kilograms instantly, with a table of common weights.

In short

Multiply pounds by 0.45359237 to get kilograms. For example, 150 lb × 0.45359 ≈ 68.04 kg.

How do I convert pounds to kilograms?: Multiply pounds by 0.45359237 to get kilograms. 150 lb × 0.45359 ≈ 68.04 kg.
How do I convert kilograms back to pounds?: Use the swap button, or apply the reverse factor: kg × 2.20462 = lb.
Is the conversion exact?: Yes. 1 lb = 0.45359237 kg exactly.