How to Convert Pounds to Kilograms
Converting pounds to kilograms is done by dividing the weight in pounds by 2.20462, or equivalently multiplying by 0.453592. The kilogram is the base unit of mass in the International System of Units (SI), while the pound is used in the imperial and US customary systems.
This conversion is frequently needed when traveling internationally, communicating weight measurements with people in metric-system countries, or using fitness and health applications that require metric inputs. Many medical and scientific contexts exclusively use kilograms, so being able to convert from pounds is a practical skill.
For a fast mental estimate, simply divide the number of pounds by 2.2. This gives you a result that is accurate enough for most everyday purposes. The conversion table below provides precise values for common pound amounts, from small weights to typical adult body weights.