Last updated: September 16, 2026
Quick answer: Divide pounds by 14 to get stone. 1 stone = 14 pounds. So 140 lbs = 10 stone, 154 lbs = 11 stone, and 168 lbs = 12 stone.
Pound to Stone
Instantly convert pound to stone with fast, accurate, real-time results.
Stone is still the everyday unit for body weight in the UK and Ireland — NHS medical forms, bathroom scales, and newspapers all use it. Americans visiting the UK or reading British health content often see a weight in stone and need it in pounds to make sense of it. For the reverse, the stone to pounds converter handles st → lbs.
Formula: Pounds to Stone
The stone is defined as exactly 14 international avoirdupois pounds. One stone also equals 6.35029 kilograms. To convert the other way: multiply stone by 14 to get pounds, or multiply by 6.35029 to get kilograms.
Stone with remaining pounds
Body weight in the UK is usually given as stone and pounds — for example, "11 st 6 lbs." To get there from a whole pound figure:
- Divide pounds by 14 — the whole number is the stone
- The remainder is the extra pounds
Example: 162 lbs ÷ 14 = 11 remainder 8 → 11 stone 8 pounds
Body Weight Chart (100–280 lbs)
| Pounds (lbs) | Stone (decimal) | Stone & lbs | Kilograms (kg) |
|---|---|---|---|
| 100 lbs | 7.14 st | 7 st 2 lbs | 45.4 kg |
| 110 lbs | 7.86 st | 7 st 12 lbs | 49.9 kg |
| 120 lbs | 8.57 st | 8 st 8 lbs | 54.4 kg |
| 126 lbs | 9 st | 9 st 0 lbs | 57.2 kg |
| 130 lbs | 9.29 st | 9 st 4 lbs | 59.0 kg |
| 140 lbs | 10 st | 10 st 0 lbs | 63.5 kg |
| 150 lbs | 10.71 st | 10 st 10 lbs | 68.0 kg |
| 154 lbs | 11 st | 11 st 0 lbs | 69.9 kg |
| 160 lbs | 11.43 st | 11 st 6 lbs | 72.6 kg |
| 168 lbs | 12 st | 12 st 0 lbs | 76.2 kg |
| 170 lbs | 12.14 st | 12 st 2 lbs | 77.1 kg |
| 180 lbs | 12.86 st | 12 st 12 lbs | 81.6 kg |
| 182 lbs | 13 st | 13 st 0 lbs | 82.6 kg |
| 190 lbs | 13.57 st | 13 st 8 lbs | 86.2 kg |
| 196 lbs | 14 st | 14 st 0 lbs | 88.9 kg |
| 200 lbs | 14.29 st | 14 st 4 lbs | 90.7 kg |
| 210 lbs | 15 st | 15 st 0 lbs | 95.3 kg |
| 220 lbs | 15.71 st | 15 st 10 lbs | 99.8 kg |
| 224 lbs | 16 st | 16 st 0 lbs | 101.6 kg |
| 240 lbs | 17.14 st | 17 st 2 lbs | 108.9 kg |
| 252 lbs | 18 st | 18 st 0 lbs | 114.3 kg |
| 260 lbs | 18.57 st | 18 st 8 lbs | 117.9 kg |
| 280 lbs | 20 st | 20 st 0 lbs | 127.0 kg |
Writing Stone and Pounds Together
In British English, body weight is almost always expressed as stone and pounds — never as a decimal stone figure. Common conventions:
- Written: "11 stone 6 pounds" or "11 st 6 lb"
- Spoken: "eleven six" (the stone is implied)
- Scales display: "11:06" or "11.6" — the digit after the colon or decimal is pounds, not tenths
To convert to kilograms instead of stone, the lbs to kg converter gives the metric figure directly. For grams and ounces on lighter objects, see the ounces to grams converter.
Full Pounds to Stone Table (1–300 lbs)
| lbs | Stone | lbs | Stone | lbs | Stone |
|---|---|---|---|---|---|
| 14 | 1 st 0 | 98 | 7 st 0 | 182 | 13 st 0 |
| 28 | 2 st 0 | 112 | 8 st 0 | 196 | 14 st 0 |
| 42 | 3 st 0 | 126 | 9 st 0 | 210 | 15 st 0 |
| 56 | 4 st 0 | 140 | 10 st 0 | 224 | 16 st 0 |
| 70 | 5 st 0 | 154 | 11 st 0 | 252 | 18 st 0 |
| 84 | 6 st 0 | 168 | 12 st 0 | 280 | 20 st 0 |
FAQs About Pounds to Stone
How many pounds in 1 stone?
Exactly 14 pounds. The stone is a traditional British unit defined in the Weights and Measures Act 1985 as 14 avoirdupois pounds, or 6.35029318 kilograms.
How do I convert 150 lbs to stone?
150 ÷ 14 = 10 remainder 10, so 150 lbs = 10 stone 10 pounds. In decimal: 10.71 stone.
Do Americans use stone for weight?
No. The US uses pounds (and kilograms in medical settings). Stone is used primarily in the UK and Ireland for body weight. Outside those countries it's rarely seen except in British media or NHS health guidance.
What is 11 stone in pounds?
11 stone × 14 = 154 pounds. In kilograms, 11 stone = 69.85 kg.
How do I convert stone to kg?
Multiply stone by 6.35029. So 12 stone = 12 × 6.35029 = 76.2 kg. Or convert stone to pounds first (×14), then use the lbs to kg converter.
Sources
References & further reading
- UK Weights and Measures Act 1985 — Schedule 1, Part VI: defines the stone as 14 pounds
- Bureau International des Poids et Mesures (BIPM) — International avoirdupois pound = 0.45359237 kg (exact)
- NHS — Body weight guidance and BMI calculators (uses stone and pounds for patient-facing content)
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