1 stone (st) = 14 pounds (lbs) = 6.35029318 kilograms (kg) = 6350.29318 grams (g) = 224 ounces (oz). The stone (abbreviation and symbol: st) is a unit of mass which was used in UK and several Commonwealth countries. The stone is equal to 14 avoirdupois pounds; it was abolished from trades in UK in 1985.