How to convert stone to kg?
Type a value in either box, and the answer shows it in the other unit as you type.
- Kilograms (kg)
- 6.350293
1 st = 6.350293 kg.
Kilograms (kg): 6.350293. 1 st = 6.350293 kg.
Kilograms (kg) by stone (st)
How to calculate
Converts stone (st) to kilograms (kg) and back, with the exact unit definitions.
Example with the default inputs (Stone (st) 1): 1 st = 6.350293 kg.
Formula: kg = st × 6.35029318
- 1 stone = 6.35029318 kilograms, from the exact definitions in NIST SP 811.
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up.
Worked examples
Each example is checked against the calculator on every build.
- Stone (st) 1 gives Kilograms (kg) 6.350293.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Stone (st) 10 gives Kilograms (kg) 63.502932.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Kilograms (kg) 63.502932 gives Stone (st) 10.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
Other questions people ask
How many kilograms are in a stone?
1 stone is 6.350293 kilograms, from the exact unit definitions (NIST SP 811).
How do I convert stone to kg?
Multiply by 6.350293: kg = st × 6.35029318. For example, 1 st × 6.350293 = 6.350293 kg.
How do I convert kg back to stone?
Multiply by 0.157473, or type the kilograms into the second box and the converter works it out. 1 kilogram is 0.157473 stone.
How many pounds are in a stone?
14 (NIST Handbook 44). A pound is exactly 0.45359237 kg, so a stone is 14 × 0.45359237 = 6.35029318 kg.
How do I convert stone and pounds to kg?
Use the stone and pounds to kg converter, or turn the pounds into stone first: 11 st 4 lb is 11 + 4 ÷ 14 = 11.285714 stone, which is 71.667594 kg.
What is 10 stone in kg?
10 × 6.35029318 = 63.5029318 kg, shown as 63.502932 kg.