Stone to Pounds (st to lbs)
A stone is exactly 14 pounds, so to convert stone to pounds you multiply by 14. 11 stone is 154 lb and 15 stone is 210 lb. Stone is still the everyday unit for body weight in the UK and Ireland, which is where most stone-to-pound conversions come from.
Convert stone to lbs
Result
stone to lbs
11 st = 154 lb
1 st = 14 lb · 1 lb = 0.0714286 st
Show the mathHow it was calculated
lb = st × 14
Uses exact legal definitions; results are rounded to 6 significant figures for display.
How to convert stone to lbs
lb = st × 14
One stone is exactly 14 pounds, so multiply by 14.
Worked example: converting 11 st:
- lb = st × 14
- 11 st × 14 = 154 lb
Stone to lbs conversion table
Common values, each computed with the exact formula and rounded to 6 significant figures.
| 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 |
| 7.5 st | 105 lb |
| 8 st | 112 lb |
| 8.5 st | 119 lb |
| 9 st | 126 lb |
| 9.5 st | 133 lb |
| 10 st | 140 lb |
| 10.5 st | 147 lb |
| 11 st | 154 lb |
| 11.5 st | 161 lb |
| 12 st | 168 lb |
| 12.5 st | 175 lb |
| 13 st | 182 lb |
| 13.5 st | 189 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 |
| 22 st | 308 lb |
| 25 st | 350 lb |
| 30 st | 420 lb |
Quick reference: everyday stone in pounds
One stone
1 st = 14 lb
Half-stone milestone
0.5 st = 7 lb
Ten stone
10 st = 140 lb
12 st 7 lb (decimal 12.5 st)
12.5 st = 175 lb
Sixteen stone
16 st = 224 lb
Twenty stone
20 st = 280 lb
Converting 'stone and pounds' weights
British weights are usually written as stone plus leftover pounds, such as 11 st 4 lb. Multiply the stone by 14 and add the pounds: 11 × 14 + 4 = 158 lb. The leftover is always less than 14, so a reading of '10 st 14 lb' should really be written 11 st 0 lb.
Decimal stone such as 11.5 st means eleven and a half stone, which is 11 st 7 lb (161 lb), not 11 st 5 lb. Bathroom scales that show decimal stone can be confusing for that reason. Convert the decimal part by multiplying it by 14 to get the pounds.
Stone, pounds and kilograms for health tools
Health services and most calculators expect kilograms or pounds rather than stone. One stone is exactly 6.35029318 kg, so 11 st is 69.85 kg. Our BMR calculator and body fat calculator accept pounds. Convert stone to pounds here first, then switch the calculator to US units.
When tracking weight loss, many people in the UK set goals in half-stone steps. Half a stone is 7 lb, or 3.18 kg. A loss of 1 lb a week takes 7 weeks to reach a half-stone milestone. The calories calculator can help you plan the daily deficit.
Frequently asked questions
Why is a stone 14 pounds?
The stone was a traditional English trade weight that varied by commodity and region until it was standardized at 14 avoirdupois pounds. The UK still uses it informally for body weight, though officially metric. The US never adopted it, which is why American scales and forms use pounds alone.
How do I convert stone to kilograms?
Multiply by 6.35029318, the exact number of kilograms in a stone, or convert to pounds first and multiply by 0.45359237. 12 stone is 76.2 kg. For stone-and-pounds weights such as 12 st 3 lb, convert the whole thing to pounds first (171 lb) and then to kilograms (77.56 kg).
Is stone used anywhere besides the UK and Ireland?
As an everyday body-weight unit, it's mainly the UK and Ireland, plus the occasional reference in Australian or New Zealand media. US scales and medical records use pounds, and almost everywhere else uses kilograms. Horse racing in Britain and Ireland also expresses carried weights in stone and pounds.