Weight Converter
Convert between metric and imperial/US weight (mass) units. All conversions pass through the kilogram, using exact avoirdupois definitions (1 pound = 0.45359237 kg exactly).
About these conversions
- All conversions pass through the kilogram as the base unit.
- 1 pound is exactly 0.45359237 kilograms by international agreement.
- 1 stone = 14 pounds (used mainly in the UK and Ireland).
- These are mass units; everyday 'weight' conversions assume standard gravity.