Loona Calculators
Convert stone to kilograms instantly — type any value and the result appears as you type. Below you will find the exact formula, a st to kg conversion table and a worked example.
Formula: Kilograms = stone × 6.35029. One stone is exactly 14 pounds = 6.35029318 kilograms.
Question: How many kilograms is 11 st — a body weight often quoted in the UK?
Steps: Take the value in stone: 11 st. Apply the formula: Kilograms = stone × 6. That gives 11 → 69.8532 kg (rounded to four decimal places).
Result: 11 st = 69.8532 kg.
| Stone (st) | Kilograms (kg) |
| 1 st | 6.3503 kg |
| 5 st | 31.7515 kg |
| 8 st | 50.8023 kg |
| 10 st | 63.5029 kg |
| 11 st | 69.8532 kg |
| 12 st | 76.2035 kg |
| 14 st | 88.9041 kg |
| 15 st | 95.2544 kg |
| 20 st | 127.0058 kg |
| 25 st | 158.7572 kg |
Need a value that is not in the table — or the reverse direction? Use the converter at the top of this page, or the full Unit Converter for every unit in one place.
Multiply the value in stone by 6.3503: st × 6.3503 = kg. For example, 10 st × 6.3503 = 63.5029 kg. The converter above does this instantly.
Exactly 6.3503 kg (to four decimal places). The full relationship: Kilograms = stone × 6.
10 stone = 63.5029 kilograms.
Reverse the formula above. For a quick check, divide by the same factor instead of multiplying.
In the United Kingdom and Ireland, body weight is commonly given in stone and pounds — 11 stone 4 lb, for example. One stone is always 14 pounds.
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