Conversion Formula
To convert stones to kilograms, multiply the stone value by 6.35029. One stone equals 14 pounds or approximately 6.35 kilograms.
Step-by-Step Conversion Guide
Follow these steps to convert stones to kilograms manually:
Start with your value in stones
Example: You want to convert 8 st
Apply the conversion formula
Use the formula: kg = st × 6.35029
Calculate the result
8 st = 50.8023 kg
Verify your answer
Use our calculator above to double-check your manual calculation.
Quick Mental Math Tip
To convert stones to kilograms, multiply the stone value by 6.35029. One stone equals 14 pounds or approximately 6.35 kilograms.
Common Conversions
| Stones (st) | Kilograms (kg) | Kilograms → Stones |
|---|---|---|
| 1 st | 6.3503 | 1 kg = 0.1575 st |
| 5 st | 31.7515 | 5 kg = 0.7874 st |
| 8 st | 50.8023 | 8 kg = 1.2598 st |
| 10 st | 63.5029 | 10 kg = 1.5747 st |
| 11 | 69.8532 | 11 kg = 1.7322 st |
| 12 st | 76.2035 | 12 kg = 1.8897 st |
| 13 | 82.5538 | 13 kg = 2.0472 st |
| 14 st | 88.9041 | 14 kg = 2.2046 st |
| 15 st | 95.2544 | 15 kg = 2.3621 st |
| 20 st | 127.0058 | 20 kg = 3.1495 st |
Did You Know?
Weight conversions between st and kg are essential in international trade, where different countries use different measurement systems.
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Last verified: April 2026. All conversion factors are based on internationally defined standards.