Convert Pounds to Stones
Convert Pounds (lb) to Stones (st) instantly and accurately.
Conversion Formula
st = lb × 0.07142857143
About Pounds
The avoirdupois pound (lb) is the primary unit of weight in the United States and United Kingdom for everyday use, equal to 16 ounces or exactly 453.59237 grams. It dominates American life: body weight, grocery produce, deli counter cuts, freight shipping costs, gym weights, and building material quantities are all measured in pounds and ounces. American recipes use pounds for meat and large quantities. The pound derives from the Roman 'libra pondo' (a pound by weight) - hence both the symbol 'lb' (from libra) and the British currency symbol '£'.
About Stones
A stone (st) equals 14 pounds or approximately 6.350 kg. It is the standard unit for expressing human body weight in the United Kingdom and Ireland, where a person will say they weigh '11 stone 4' (meaning 11 stone and 4 pounds, or 158 lb / 71.7 kg). Despite the UK's official adoption of the metric system, stones remain the dominant unit for personal body weight on British bathroom scales, in doctors' offices, and in everyday conversation. British newspapers and sports reports routinely describe athletes' weights in stones and pounds.
Quick Reference Table
| Pounds (lb) | Stones (st) |
|---|---|
| 1 lb | 0.0714286 st |
| 2 lb | 0.142857 st |
| 5 lb | 0.357143 st |
| 10 lb | 0.714286 st |
| 25 lb | 1.78571 st |
| 50 lb | 3.57143 st |
| 100 lb | 7.14286 st |