1 pound = 0.45359237 kilograms 1 pound = 0.454 kilograms The formula to convert lbs to kg 1 lb | * | 1 kg 2.2046 lb | = | 0.45359237 kg 1 lb = 0.453592 kg The formula to co … nvert kg to lbs 1 kg | * | 2.2046 lbs 1 kg | = | 2.204622622 lbs about 1 million 1 pound = 0.453 kilograms.