Stone to Kilograms Converter
Use this quick calculator to convert any value in stone (st) to kilograms (kg).
How to convert stone to kg
The conversion is simple:
1 stone = 6.35029318 kilograms
So, to convert stone to kilograms, multiply your stone value by 6.35029318.
Example: 11 stone × 6.35029318 = 69.8532 kg
Why people search for a convert stone to kg calculator
The stone unit is commonly used in the UK and Ireland for body weight, while kilograms are used in most medical, fitness, and international settings. That means you often need quick, accurate conversion when:
- reading health records or BMI charts,
- tracking progress in a fitness app,
- filling out forms that ask for kg only,
- comparing your weight internationally.
Quick stone to kilogram chart
| 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 |
| 15 st | 95.25 kg |
| 16 st | 101.60 kg |
Tips for accurate weight conversion
1) Use decimals when needed
If your weight is between whole numbers (for example, 10.7 st), include decimal places to get a more precise kg result.
2) Weigh yourself under similar conditions
For consistent tracking, weigh yourself at the same time of day, with similar clothing, and the same scale.
3) Keep one main unit for tracking
Even if you know both units, choose one (stone or kg) as your primary tracking unit to avoid confusion over time.
Frequently asked questions
Is stone an official metric unit?
No. Stone is an imperial unit. Kilograms are part of the metric system and are used globally in science and medicine.
How many kg is 1 stone exactly?
1 stone = 6.35029318 kg exactly by conversion standard.
Can I convert kg back to stone?
Yes. Divide kilograms by 6.35029318 to get stone.
Do I need to round the result?
For daily use, 1–2 decimal places are usually enough. Clinical settings may need more precision.
Final note
This convert stone to kg calculator gives you a fast, reliable way to switch units for health, fitness, and everyday use. Enter your value, click convert, and you’ll get an instant kilogram result along with additional details.