Stone to pounds
Multiply stone by 14 to get pounds.
12 st = 168 lb
How to convert stone to pounds
The pound is exactly 0.45359237 kilograms — the international avoirdupois pound fixed by the 1959 agreement of the US, UK and Commonwealth. The stone is exactly 14 pounds — the imperial unit defined in Schedule 1 of the UK Weights and Measures Act 1985, so 1 st = 6.35029318 kg exactly.
Worked example — 12 st: 12 × 14 = 168 lb. (168 lb 0 oz)
Stone to pounds table
| Stone | Pounds | Pounds and oz |
|---|---|---|
| 1 st | 14 lb | 14 lb 0 oz |
| 8 st | 112 lb | 112 lb 0 oz |
| 10 st | 140 lb | 140 lb 0 oz |
| 11 st | 154 lb | 154 lb 0 oz |
| 12 st | 168 lb | 168 lb 0 oz |
| 13 st | 182 lb | 182 lb 0 oz |
| 14 st | 196 lb | 196 lb 0 oz |
| 15 st | 210 lb | 210 lb 0 oz |
| 20 st | 280 lb | 280 lb 0 oz |
Reverse and related
About stone and pounds
Stone (st)
1 st = 14 lbDefinition. Exactly 14 pounds — the imperial unit defined in Schedule 1 of the UK Weights and Measures Act 1985, so 1 st = 6.35029318 kg exactly
History and origin
The stone was a trading weight that varied by commodity and region across medieval Europe before Britain fixed it at 14 pounds. It is defined in Schedule 1 of the UK Weights and Measures Act 1985.
Current use
The stone is still the usual way to give body weight in the United Kingdom and Ireland, where a person might be eleven stone four, but it is little used elsewhere.
Source: Weights and Measures Act 1985 (UK), Schedule 1, Part VI
Pound (lb)
1 lb = 0.0714286 stDefinition. Exactly 0.45359237 kilograms — the international avoirdupois pound fixed by the 1959 agreement of the US, UK and Commonwealth
History and origin
The pound descends from the Roman libra, whose name still gives the symbol lb. Many regional pounds circulated for centuries before the 16-ounce avoirdupois pound became the English-speaking standard for trade. In 1959 the United States, the United Kingdom and other Commonwealth countries signed the international yard and pound agreement, fixing the pound at exactly 0.45359237 kilograms.
Current use
The pound is the everyday unit of weight in the United States, and informally in the United Kingdom, for body weight, food packaging and shipping, while most of the world states the same weights in kilograms.
Source: NIST Handbook 44, Appendix C §5 (Tables of Equivalents)
Where people use this
Stone: body weight in the UK and Ireland. Pounds: body weight in the US, gym plates, shipping weights. 11 st is 154 lb — the stone is 14 pounds exactly.
Every value is carried to full double precision; the display is rounded.
Sources: NIST Handbook 44, Appendix C §5 (Tables of Equivalents); Weights and Measures Act 1985 (UK), Schedule 1, Part VI.
Questions people ask
How many pounds is 11 stone?
11 stone is exactly 154 pounds, since one stone is 14 pounds. Multiply the stone by 14 to get pounds.
How many pounds are in a stone?
One stone is exactly 14 pounds, as defined in the UK Weights and Measures Act 1985.
What is 12 stone in pounds?
12 stone is 168 pounds (12 × 14), and 13 stone is 182 pounds.