Calcometry
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Stone to Kg Converter
Convert stone to kilograms (and back) instantly. Useful for UK body weight and health records.
Stone
st
Kilograms
kg
1 st = 6.3503 kg
Convert Stone
Quick presets
Kilograms
69.8532 kg
11 st = 69.8532 kg
- 8 st
- 50.8023 kg
- 9 st
- 57.1526 kg
- 10 st
- 63.5029 kg
- 11 st
- 69.8532 kg
- 12 st
- 76.2035 kg
- 13 st
- 82.5538 kg
- 15 st
- 95.2544 kg
- 20 st
- 127.01 kg
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Stone vs kilograms
A stone is a UK unit of body weight equal to 14 pounds. Kilograms are the medical and scientific standard worldwide. One stone equals exactly 6.35029318 kilograms.
Common questions
How do I read UK bathroom scales that show stone and pounds?
UK scales often display like “11 st 4 lb” — 11 stone plus 4 extra pounds. One stone equals 14 lb. Convert the full weight: (11 × 14) + 4 = 158 lb, then to kg if needed.
Why do UK doctors sometimes ask for weight in stone?
Public conversation in the UK and Ireland still uses stone for body weight, while medical notes may record kilograms. Know both if you are filling international health forms or telehealth intake.
Is a stone the same in the US?
The US rarely uses stone for people. A “stone” in US trade can refer to other customary weights (e.g. 14 lb for some commodities). This calculator uses the UK stone of 14 avoirdupois pounds.
How many kg is 12 stone?
12 stone is 168 lb, which is about 76.2 kg. For gym or nutrition tracking in kg, convert the total rather than treating “12” as a kg value.