Stone to KG Converter
Convert stone to kilograms in your browser, with a full reference table and the formula behind it. Free, instant, no sign-up.
How to convert stone to kilograms
kilograms = stone × 6.3503
One stone is 6.3503 kilograms, so any conversion is a single multiplication. To go the other way, divide by 6.3503 instead. The converter above is already set to stone and kilograms, so you can type any value and read the answer straight away.
Stone to KG conversion table
Common values, worked out in advance:
| Stone (st) | Kilograms (kg) |
|---|---|
| 1 st | 6.3503 kg |
| 2 st | 12.7006 kg |
| 3 st | 19.0509 kg |
| 5 st | 31.7515 kg |
| 10 st | 63.5029 kg |
| 15 st | 95.2544 kg |
| 20 st | 127.0059 kg |
| 25 st | 158.7573 kg |
| 50 st | 317.5147 kg |
| 70 st | 444.5205 kg |
| 100 st | 635.0293 kg |
The quick mental version
For a rough answer without a calculator, remember that 1 kg is about 0.157473 st. That is usually close enough for shopping, travel and DIY, and the converter above gives you the exact figure when it matters.
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Frequently asked questions
How many kilograms are in 1 st?
One st is 6.3503 kg. The table above covers the values people look up most often.
What is the formula to convert stone to kilograms?
kilograms = stone × 6.3503. One stone is 6.3503 kilograms, so any conversion is a single multiplication. To go the other way, divide by 6.3503 instead.
Is this stone to kg converter accurate?
Yes. It uses the exact internationally defined conversion factors and calculates in your browser, so nothing is rounded until the result is displayed.
Can I convert kilograms back to stone here?
Yes. Use the swap button in the converter to reverse the direction, or pick any other pair of units from the two dropdowns.