weight
Pounds to Kilograms
lb → kg — instant conversion with formula and AI explanation.
Live Visual Representation
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</> Formula
formula.ts
kg = lb × 0.45359237 AI
Explanation
One pound equals 0.45359237 kilograms. Multiply your pounds value by this constant to get kilograms — the SI unit of mass used worldwide.
Common Examples
1.00 lb0.45 kg
10.00 lb4.54 kg
150.00 lb68.04 kg
200.00 lb90.72 kg
FAQ
How many kg in a pound?▾
Exactly 0.45359237 kilograms in one international avoirdupois pound.
Is this exact?▾
Yes — the conversion factor is defined by international agreement and is exact.