Stone ↔ Kilograms
Convert between stone and kilograms
Stone ↔ Kilograms
Quick Facts
- •1 stone = 14 lbs = 6.35 kg
- •10 stone = 63.5 kg = 140 lbs
What Is a Stone?
A stone is a British unit of weight equal to 14 pounds or approximately 6.35 kilograms. It is still commonly used in the UK and Ireland to express body weight. For example, a person weighing 70 kg would be described as weighing 11 stone.
How to convert Stone to Kilograms
To convert stone to kilograms, multiply the number of stone by the conversion factor. The exact factor is 6.35029.
Formula
Kilograms = Stone × 6.35029
Worked example
Convert 10 st to kg: 10 st = 63.5029 kg.
Stone to Kilograms reference table
Use this quick lookup for common stone to kilograms values.
| Stone (st) | Kilograms (kg) |
|---|---|
| 1 st | 6.3503 kg |
| 2 st | 12.7006 kg |
| 5 st | 31.7515 kg |
| 10 st | 63.5029 kg |
| 20 st | 127.0058 kg |
| 25 st | 158.7572 kg |
| 50 st | 317.5145 kg |
| 75 st | 476.2717 kg |
| 100 st | 635.029 kg |
| 250 st | 1,587.5725 kg |
Frequently asked questions
What is the formula to convert Stone to Kilograms?
Multiply the number of stone by 6.35029 to get kilograms. For example, 10 st equals 63.5029 kg.
How many kilograms are in 1 stone?
1 st equals 6.3503 kg.
How do I convert kilograms back to stone?
Reverse the formula: Stone = Kilograms ÷ 6.35029. For example, 100 kg equals 15.7473 st.
Is this Stone to Kilograms converter accurate?
Yes. Conversions use the internationally accepted ratio for stone and kilograms and are calculated to 4 decimal places in your browser.
What is 10 st in kg?
10 st equals 63.5029 kg.
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This calculator is for educational and reference purposes only. Always verify critical calculations independently.