Stone to Kilograms Converter
Convert stone to kilograms instantly. 1 st = 6.3503 kg. Free two-way converter with the formula and a quick reference table.
How to convert stone to kilograms
kilograms = stone × 6.3503
One stone equals 6.3503 kilograms, so to convert stone to kilograms you multiply by 6.3503. Going the other way, one kilogram is 0.157473 stone. Both units measure weight & mass, so the conversion is an exact ratio that never changes.
10 stone = 63.5029 kilograms. Multiply your stone figure by the factor above (or just type it into the box) to convert any amount.
Need the other direction? kilograms to stone
stone to kilograms table
| stone (st) | kilograms (kg) |
|---|---|
| 1 | 6.3503 |
| 2 | 12.7006 |
| 3 | 19.0509 |
| 5 | 31.7515 |
| 10 | 63.5029 |
| 20 | 127.01 |
| 25 | 158.76 |
| 50 | 317.51 |
| 100 | 635.03 |
| 250 | 1,587.57 |
| 500 | 3,175.15 |
| 1,000 | 6,350.29 |
Frequently asked questions
How many kilograms are in a stone?
One stone equals 6.3503 kilograms. So to convert, multiply the number of stone by 6.3503.
How do I convert stone to kilograms?
Multiply by 6.3503, or simply enter the value in the converter above — it does the math instantly and works both ways.
Is this conversion exact?
Yes — both units measure the same quantity, so the ratio is fixed and this uses the standard internationally-agreed factor.