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Pounds (lb) = Kilograms (kg) Visit Kilograms to Pounds Conversion. Pounds: The pound or pound-mass (abbreviations: lb, lbm, lbm, ℔) is a unit of mass with several definitions. Nowadays, the common is the international avoirdupois pound which is legally defined as exactly kilograms.
The final formula to convert Lb to Kg is: [Lb] = * = Kilogram is the SI unit of mass. Mass is defined as the tendency of objects at rest to remain so unless acted upon by a force. Kilogram came from the French word kilogrammes. It was incorporated into the French law in .