Stone to Kilograms (st to kg)
1 st = 6.350293 kg. Multiply stone by 6.350293; the box below does it both ways.
kilograms
8 st = 50.8023 kg · kilograms to stone page
How to convert stone to kilograms
- Take the value in stone.
- Multiply by 6.350293 (because 1 st = 6.350293 kg).
- Example: 8 st × 6.350293 = 50.8023 kg.
- Going back: divide by 6.350293, or multiply by 0.157473.
Where this comes up
A stone is 14 pounds, 6.35 kg; it survives only in UK and Irish body-weight talk. 10 stone is 63.5 kg, 12 stone 76.2 kg. Weights like "11 st 4 lb" need the pounds added as a fraction: 11 + 4/14 = 11.29 st.
| st | kg |
|---|---|
| 5 | 31.7515 |
| 6 | 38.1018 |
| 7 | 44.4521 |
| 8 | 50.8023 |
| 9 | 57.1526 |
| 10 | 63.5029 |
| 11 | 69.8532 |
| 12 | 76.2035 |
| 13 | 82.5538 |
| 14 | 88.9041 |
| 15 | 95.2544 |
| 16 | 101.6047 |
| 18 | 114.3053 |
| 20 | 127.0059 |
Questions people ask
How many kilograms are in 1 stone?
1 st = 6.350293 kg. To convert, multiply the stone value by 6.350293.
What is 12 st in kg?
12 st is 76.2035 kg.
How do I convert kilograms back to stone?
Divide by 6.350293, or multiply by 0.157473: 1 kg = 0.157473 st.
More weight conversions
Kilograms to Stone (kg to st) · kg to lb · lb to kg · g to oz · oz to g · kg to oz · oz to kg · lb to g · all converters
Factors are the exact international definitions; last checked 2026-10-10.