Pounds to stone
Multiply pounds by 0.0714286 to get stone.
154 lb = 11 st
How to convert pounds to stone
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. The pound is exactly 0.45359237 kilograms — the international avoirdupois pound fixed by the 1959 agreement of the US, UK and Commonwealth.
Worked example — 154 lb: 154 × 0.0714286 = 11 st. (11 st 0 lb)
Pounds to stone table
| Pounds | Stone | Stone and lb |
|---|---|---|
| 14 lb | 1 st | 1 st 0 lb |
| 50 lb | 3.5714 st | 3 st 8 lb |
| 100 lb | 7.1429 st | 7 st 2 lb |
| 140 lb | 10 st | 10 st 0 lb |
| 154 lb | 11 st | 11 st 0 lb |
| 168 lb | 12 st | 12 st 0 lb |
| 196 lb | 14 st | 14 st 0 lb |
| 224 lb | 16 st | 16 st 0 lb |
| 280 lb | 20 st | 20 st 0 lb |
Reverse and related
About pounds and stone
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)
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
Where people use this
Pounds: body weight in the US, gym plates, shipping weights. Stone: body weight in the UK and Ireland. 154 lb is exactly 11 st.
Every value is carried to full double precision; the display is rounded.
Sources: Weights and Measures Act 1985 (UK), Schedule 1, Part VI; NIST Handbook 44, Appendix C §5 (Tables of Equivalents).
Questions people ask
How many stone is 154 lb?
154 pounds is exactly 11 stone (154 ÷ 14). To convert pounds to stone, divide by 14.
How do you convert pounds to stone and pounds?
Divide the pounds by 14 for whole stone and keep the remainder as pounds, so 160 lb is 11 st 6 lb.
What is 200 lb in stone?
200 pounds is about 14 st 4 lb, or 14.29 stone.