Mass Calculator · Practical guide
Convert Stone to Pounds
One stone is exactly 14 pounds — multiply any stone value by 14 to get pounds.
At a glance
The Simple Rule
One stone equals exactly 14 pounds. To convert stone to pounds, multiply by 14: 10 stone = 140 lb, 12 stone = 168 lb. Stone remains the everyday body-weight unit in the UK and Ireland, while the US uses pounds alone.
Interactive tool
Mass Calculator
Enter your own values, then compare the result with the examples below.
Results
Stone to Pounds Chart
| Stone | Pounds | Kilograms |
|---|---|---|
| 8 st | 112 lb | 50.80 kg |
| 10 st | 140 lb | 63.50 kg |
| 11 st | 154 lb | 69.85 kg |
| 12 st | 168 lb | 76.20 kg |
| 14 st | 196 lb | 88.90 kg |
| 15 st | 210 lb | 95.25 kg |
Handling Stone-and-Pound Notation
British weights are often written as, for example, 11 st 6 lb. Convert the stone part first (11 x 14 = 154), then add the extra pounds: 154 + 6 = 160 lb. In kilograms that is 160 x 0.453592 = 72.57 kg.
Stone in Kilograms
One stone is 6.35029 kg, since 14 lb x 0.453592 = 6.35029. So a 13 stone person weighs 82.55 kg, and the classic 15 stone mark is 95.25 kg. Enter any of these in the converter above to see the value across all seven supported units at once.
Frequently Asked Questions
Why is a stone 14 pounds?
The stone was standardized at 14 pounds in 14th-century England for trading wool and other goods, and the value stuck for body weight ever since.
What is 12 stone in pounds?
Twelve stone is exactly 168 pounds, or about 76.20 kilograms.
Do Americans use stone for weight?
Almost never — the US uses pounds exclusively. You will mostly see stone in British and Irish media, boxing, and rugby.
How do I convert pounds back to stone?
Divide the pounds by 14. For example, 180 lb / 14 = 12.86 stone, commonly written as 12 st 12 lb.