Full name: stone
Plural form: stones
Category type: weight
Scale factor: 6.35029318
The SI base unit for mass is the kilogram.
The SI derived unit for weight or force is the newton.
1 kilogram is equal to 0.157473044418 stone.
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A stone is a unit of mass within the Imperial units system used in the United Kingdom and Ireland, and formerly in a number of Commonwealth countries. It is equal to 14 pounds avoirdupois, i.e. 6.35029318 kilograms.