Weight & Mass Converter

Mass conversions rely on the exact definition of the pound: 1 lb = 0.45359237 kg, so 1 kg = 2.20462 lb. A person who weighs 75 kg weighs 75 × 2.20462 = 165.3 lb. A stone is 14 lb, which is 6.35 kg, so 75 kg is about 11 stone 11 lb. One tonne is 1,000 kg and one ounce is 28.35 g. Use mass units for ingredients, freight and body weight, and note that in everyday speech weight and mass are used interchangeably even though scientifically weight is a force. Enter the value and choose the units to convert, and the result is shown to the appropriate precision.