stone to kilogram
Convert stone (st) to kilogram (kg). Use an editable mass converter, conversion formula, and reference table.
1 st = 6.35029318 kg
Conversion formula
One stone equals 6.35029318 kilogram. Multiply your value in stone by this factor to get kilogram. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 stone:5 × 6.35029318 = 31.7514659 kg
Conversion table
| stone (st) | kilogram (kg) |
|---|---|
| 0.01 | 0.0635029318 |
| 0.1 | 0.635029318 |
| 1 | 6.35029318 |
| 2 | 12.70058636 |
| 5 | 31.7514659 |
| 10 | 63.5029318 |
| 25 | 158.7573295 |
| 50 | 317.514659 |
| 100 | 635.029318 |
| 1000 | 6,350.29318 |
About these measurements
Mass quantifies an amount of matter.
The base reference used here is the gram. One stone is 6,350.29318 base units; one kilogram is 1,000 base units.
Important distinctions
Mass is not force. Avoirdupois ounces and troy ounces have different masses.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert st to kg?
Multiply the quantity in st by 6.35029318. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the kilogram to stone converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
