Direct answer

How Many Kilograms in a Pound? 1 lb ≈ 0.453592 kg

1 avoirdupois pound equals 0.45359237 kilograms. Quick body-weight and shipping answer with formula and lb ↔ kg links.

Question

How many kilograms are in a pound?

1 pound (lb) equals 0.453592 kilograms (kg).

1 lb

0.453592 kg

150 lb

≈ 68.039 kg

Formula

kg = pounds × 0.453592

Inverse

lb = kilograms × 2.20462

Everyday body weight and shipping use the avoirdupois pound.

Multiply pounds by 0.453592 to get kilograms. Multiply kilograms by 2.20462 to get pounds.

Example: 150 lb ≈ 68.04 kg; 70 kg ≈ 154.32 lb.

Important caveat

Troy pounds (precious metals) are a different unit. This answer is for the avoirdupois pound.