Stones to Kilograms (st to kg) Converter – 8, 10, 12, 14 stone in kg
Convert stones to kilograms and kilograms to stones. Built for body weight conversions.
← Back to Weight Converter | Home
Stones to Kilograms (st to kg) – Instant Calculator
Stone (st)
→
Kilograms (kg)
Common Conversion Examples
8 st = 50.802345 kg
8 st = 50.802345 kg
10 st = 63.502932 kg
10 st = 63.502932 kg
12 st = 76.203518 kg
12 st = 76.203518 kg
14 st = 88.904105 kg
14 st = 88.904105 kg
Stones to Kilograms: Definition, History, Uses, and Examples
Definition
A stone (st) is an imperial unit used mainly for body weight in the UK and Ireland. 1 stone equals 6.35029318 kilograms. The st to kg formula is:
Kilograms (kg) = Stones (st) × 6.35029318
Origin or History
The stone dates back to traditional European trade weights; the kilogram is the international SI base unit. Stone persists culturally for body weight; most other domains use kg.
Current Use
- Health & fitness: record and convert body weight.
 - Media & sports: athlete profiles in stones and pounds.
 - International comparison: switch between st and kg for global audiences.
 
Examples
| Stones (st) | Kilograms (kg) | Example Use | 
|---|---|---|
| 8 st | 50.8023 kg | Light adult | 
| 10 st | 63.5029 kg | Average adult | 
| 12 st | 76.2035 kg | Heavier adult | 
| 14 st | 88.9041 kg | Heavy adult | 
Step-by-step example
Convert 9 st to kilograms: 9 × 6.35029318 = 57.1526 kg.
Frequently Asked Questions
How many kilograms are in one stone?
Exactly 6.35029318 kg.
Is stone still used outside the UK?
Rarely. Most countries use kilograms or pounds.
How do I convert kilograms to stones?
Divide kilograms by 6.35029318.