Convert stone to kilograms instantly. Stone is still widely used for body weight in the UK and Ireland — enter a weight in stone to see it in kilograms.
How to convert stone to kg
One stone is 14 pounds, which is exactly 6.35029318 kg. To convert stone to kilograms, multiply by 6.35029.
Formula: kilograms = stone × 6.35029
Example: 12 stone is 12 × 6.35029 = 76.2 kg. For a weight in stones and pounds, turn the pounds into a fraction of a stone first: 12 st 7 lb = 12.5 st = 79.38 kg.
Tip: To include leftover pounds, divide them by 14 and add the result to the stones — 4 lb is 4 ÷ 14 = 0.29 st.
| Stone | Kilogram |
|---|---|
| 6 | 38.10175908 |
| 7 | 44.45205226 |
| 8 | 50.80234544 |
| 9 | 57.15263862 |
| 10 | 63.5029318 |
| 11 | 69.85322498 |
| 12 | 76.20351816 |
| 13 | 82.55381134 |
| 14 | 88.90410452 |
| 15 | 95.2543977 |
| 16 | 101.6046909 |
| 18 | 114.3052772 |
| 20 | 127.0058636 |
Need a different unit? The Weight Converter handles every common weight unit.