Stones to Pounds Converter
1 stone is exactly 14 pounds. To convert stones to pounds, multiply by 14.
Sources: NIST SP 811, NIST Handbook 44, UK Weights and Measures Act 1985 Updated
Result
10 st = 140 lb
How to convert stones to pounds
pounds = stones × 14
1 stone is 14 pounds, exactly 6.35029318 kilograms. 1 pound is exactly 0.45359237 kilogram.
The factor 14 is exact, not a rounded value. Nothing is rounded until you choose how many decimals to show.
Worked example: 12.5 st
- Start with the value in stones: 12.5 st.
- Multiply by 14, because 1 stone = 14 pounds: 12.5 × 14 = 175 lb.
Stones and pounds side by side
Stones to pounds chart
Stones from 1 to 25 converted to pounds with the exact factor, shown to five significant digits.
| st | lb |
|---|---|
| 1 | 14 |
| 1.5 | 21 |
| 2 | 28 |
| 2.5 | 35 |
| 3 | 42 |
| 3.5 | 49 |
| 4 | 56 |
| 4.5 | 63 |
| 5 | 70 |
| 5.5 | 77 |
| 6 | 84 |
| 6.5 | 91 |
| 7 | 98 |
| 7.5 | 105 |
| 8 | 112 |
| 8.5 | 119 |
| 9 | 126 |
| 9.5 | 133 |
| 10 | 140 |
| 10.5 | 147 |
| 11 | 154 |
| 11.5 | 161 |
| 12 | 168 |
| 12.5 | 175 |
| 13 | 182 |
| st | lb |
|---|---|
| 13.5 | 189 |
| 14 | 196 |
| 14.5 | 203 |
| 15 | 210 |
| 15.5 | 217 |
| 16 | 224 |
| 16.5 | 231 |
| 17 | 238 |
| 17.5 | 245 |
| 18 | 252 |
| 18.5 | 259 |
| 19 | 266 |
| 19.5 | 273 |
| 20 | 280 |
| 20.5 | 287 |
| 21 | 294 |
| 21.5 | 301 |
| 22 | 308 |
| 22.5 | 315 |
| 23 | 322 |
| 23.5 | 329 |
| 24 | 336 |
| 24.5 | 343 |
| 25 | 350 |
pounds = stones × 14. Factors: NIST SP 811, NIST Handbook 44, UK Weights and Measures Act 1985. unitcheck.net/weight/stones-to-pounds/
Going the other way? Use the Pounds to Stones converter.
Frequently asked questions
How many pounds are in 1 stone?
1 stone is exactly 14 pounds. 1 pound is exactly 0.45359237 kilogram.
How do I convert stones to pounds?
Multiply by 14: pounds = stones × 14. For example, 12.5 st = 175 lb.
How many stones are in 1 pound?
1 pound is about 0.0714286 stones. To go the other way, use the pounds to stones converter.
Is the st to lb conversion exact?
Yes. 1 pound is exactly 0.45359237 kilogram. The factor 14 follows from the definitions, so the only rounding is in the number of decimals you display.
How do I read the result in pounds and ounces?
The line under the result splits it for you: the whole pounds stay as they are and the decimal part is converted to ounces. For example, 12.5 st is 175 lb 0 oz.
Sources
- NIST Special Publication 811, Guide for the Use of the International System of Units, Appendix B.8: Factors for Units Listed Alphabetically — exact factors are printed in bold in the NIST table (checked October 12, 2026)
- NIST Handbook 44 (2026), Appendix C: General Tables of Units of Measurement — US customary units and their exact relationships (checked October 12, 2026)
- Weights and Measures Act 1985 (UK), Schedule 1: Definitions of Units of Measurement — imperial gallon, pint and fluid ounce, stone and long ton (checked October 12, 2026)