Convert Stone to Kilogram
Turn Stones into Kilograms in an instant. Type a value below to get an accurate st → kg result, with the formula and a quick-reference table.
1 st = 6.3502932 kg
Quick answer: 1 Stone = 6.3502932 Kilogram
Stone to Kilogram conversion table
| Stone (st) | Kilogram (kg) |
|---|---|
| 1 st | 6.3502932 kg |
| 2 st | 12.700586 kg |
| 5 st | 31.751466 kg |
| 10 st | 63.502932 kg |
| 20 st | 127.00586 kg |
| 50 st | 317.51466 kg |
| 100 st | 635.02932 kg |
| 500 st | 3,175.1466 kg |
| 1,000 st | 6,350.2932 kg |
How to convert Stone to Kilogram
To convert Stones to Kilograms, multiply the value by 6.3502932.
- Take your measurement in Stones.
- Multiply it by 6.3502932 — the number of Kilograms in one Stone.
- The result is the same amount, expressed in Kilograms.
To go the other way, multiply Kilograms by 0.15747304 — or simply divide by 6.3502932.
For example, an average adult, in stone is about 11 st, which is 69.853225 kg.
About Stone and Kilogram
A stone is 14 pounds, or about 6.35 kilograms. It is used mainly in the UK and Ireland to express a person's body weight.
The kilogram is the SI base unit of mass, equal to 1,000 grams. It is the standard unit for body weight, groceries and most goods worldwide.
The Stone is a imperial / US customary unit while the Kilogram comes from the metric system — which is exactly why this conversion comes up so often. One Stone equals 6.3502932 Kilograms.
Other weight & mass conversions
Frequently asked questions
How many Kilograms are in a Stone?
1 Stone equals 6.3502932 Kilogram (st → kg). To convert any amount, multiply the number of Stones by 6.3502932.
How do I convert Stone to Kilogram?
Enter the number of Stones in the converter above and read the result in Kilograms. It applies the exact st → kg factor instantly, with full precision.
Is the Stone to Kilogram converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined weight & mass factors and full floating-point precision, then rounds the display to a clean, readable number.