About This Calculator
This calculator converts between stones (st) and pounds (lb), two common weight units in the imperial system. It's especially useful for users in the UK and Ireland who measure body weight in stones, and need to convert to pounds for health, fitness, or travel purposes.
How It Works
- Select the conversion direction: Stone to Pounds or Pounds to Stone.
- Enter the weight value in the appropriate input field.
- Click the "Convert" button to instantly view the result, rounded to two decimal places.
All calculations use the fixed ratio: 1 stone = 14 pounds. The result is mathematically exact.
Conversion Table
The table below shows common conversions from 1 to 20 stones, based on the fixed ratio of 14 pounds per stone.
| Stone (st) | Pounds (lb) |
|---|---|
| 1 st | 14 lb |
| 2 st | 28 lb |
| 3 st | 42 lb |
| 4 st | 56 lb |
| 5 st | 70 lb |
| 6 st | 84 lb |
| 7 st | 98 lb |
| 8 st | 112 lb |
| 9 st | 126 lb |
| 10 st | 140 lb |
| 11 st | 154 lb |
| 12 st | 168 lb |
| 13 st | 182 lb |
| 14 st | 196 lb |
| 15 st | 210 lb |
| 16 st | 224 lb |
| 17 st | 238 lb |
| 18 st | 252 lb |
| 19 st | 266 lb |
| 20 st | 280 lb |
Frequently Asked Questions
How many pounds are in a stone?
One stone is equal to exactly 14 pounds.
Can I convert decimal values?
Yes. You can enter values like 5.5 st or 154.3 lb for precise conversions.
Is this calculator accurate?
Yes. The conversion uses a fixed ratio with results rounded to two decimal places for clarity.
Where is the stone unit commonly used?
The stone unit is primarily used in the UK and Ireland to express body weight. It is not commonly used in the US.