The short answer
- 1 st ≈ 6.350293 kg
- 1 kg ≈ 0.157473 st
Worked example11 st × 6.35029318 = 69.85322 kg
UNIT CONVERSION
← Weight converterStone to kilograms
To convert stone to kilograms, multiply the number of stone by 6.35029318.
What the units mean
Stone. The stone is 14 pounds, exactly 6.35029318 kilograms. It is still used for body weight in the UK and Ireland.
Kilogram. The kilogram is the SI base unit of mass, defined since 2019 through the Planck constant.
Stone to kilograms table
| Stone (st) | Kilograms (kg) |
|---|---|
| 5 | 31.75147 |
| 6 | 38.10176 |
| 7 | 44.45205 |
| 8 | 50.80235 |
| 9 | 57.15264 |
| 10 | 63.50293 |
| 10.5 | 66.67808 |
| 11 | 69.85322 |
| 11.5 | 73.02837 |
| 12 | 76.20352 |
| 12.5 | 79.37866 |
| 13 | 82.55381 |
| 13.5 | 85.72896 |
| 14 | 88.9041 |
| 15 | 95.2544 |
| 16 | 101.6047 |
| 17 | 107.955 |
| 18 | 114.3053 |
| 20 | 127.0059 |
| 25 | 158.7573 |
Values are rounded to 7 significant figures.
Common questions
How do I convert stone to kilograms?
Multiply the number of stone by 6.35029318. For example, 11 st × 6.35029318 = 69.85322 kg.
How many kilograms are in one stone?
One stone is about 6.350293 kilograms.
Is this conversion exact?
Yes. Both units have exact legal definitions, so the factor is exact. Values on this page are rounded to 7 significant figures.