Stone (unit)
informal unit of measure equal to 14 pounds avoirdupois
The stone is a unit for measuring mass in the Imperial system. It is equal to fourteen pounds. 160 stone make up a long ton. In the metric system, 1 stone = 6.35029318 kilograms.
The short way of writing stones is st.
Mass change
| Units | Grains | Drachms | Ounces | Pounds | Stones | Quarters | Long Hundredweights | Long Tons | Metric Values |
|---|---|---|---|---|---|---|---|---|---|
| Stones | 98,000 | 3,584 | 224 | 14 | 1 | 1⁄2 | 1⁄8 | 1⁄160 | 6.35029318 Kilogrammes |
Usage change
The stone was outlawed in Ireland and the United Kingdom, in 1983 and 1985 respectively. However stones and pounds are both commonly used in non-official cases, most commonly when stating the weight of a person. Often in American-British boxing matches, the contenders weight is stated in pounds then stones and pounds. The same in horse racing.
