Tip: You can enter whole numbers or decimals (for example, 9, 12.75, or 15.5 stone).
Stone to Kilograms Calculator (st to kg)
Use this simple tool to convert stone to kilograms in one click. The stone is still commonly used in the UK and Ireland for body weight, while kilograms are standard in most of the world. If you need a quick and accurate conversion for health tracking, sports, travel, or official forms, this calculator gives you a fast answer.
How to convert stone to kg
The conversion formula is straightforward:
- 1 stone = 6.35029318 kilograms
- kilograms = stone × 6.35029318
So if your weight is 10 stone, multiply 10 by 6.35029318 to get 63.5029 kg.
Worked examples
- 8 st = 50.8023 kg
- 11 st = 69.8532 kg
- 13.5 st = 85.7290 kg
- 15 st = 95.2544 kg
Common stone to kg conversions
| Stone (st) | Kilograms (kg) |
|---|---|
| 7 st | 44.45 kg |
| 8 st | 50.80 kg |
| 9 st | 57.15 kg |
| 10 st | 63.50 kg |
| 11 st | 69.85 kg |
| 12 st | 76.20 kg |
| 13 st | 82.55 kg |
| 14 st | 88.90 kg |
Why people search for a stone to kgs converter
Different countries use different units. You may see weight listed in stone at a doctor’s office, fitness app, or old records, and then need kilograms for medical charts, BMI calculations, or international documents.
A good stone-to-kilogram calculator avoids mental math errors and keeps your records consistent over time.
FAQ
Is “kgs” the same as “kg”?
Yes. “kg” is the official symbol for kilogram, while “kgs” is a common informal plural in everyday writing.
Can I convert decimal stone values?
Absolutely. Values like 10.2 stone or 12.75 stone are supported and converted accurately.
Is this conversion exact?
The calculator uses the standard conversion factor (1 st = 6.35029318 kg). Results are displayed with rounding for readability, but calculations are performed with full numeric precision.