Weight Converter
Mass in metric and imperial units.
Conversion
Stone to Kilograms Converter
1 stone = 6.35029318 kg. Enter any value to convert stone (st) to kilograms (kg), or use the table below for common values.
Formula
kg = st × 6.35029318
Example: 10 st = 63.5029318 kg. To convert the other way, use st = kg × 0.1574730444.
Quick mental estimate: multiply by about 6.4.
Stone to Kilograms conversion table
| Stone (st) | Kilograms (kg) |
|---|---|
| 1 st | 6.35029318 kg |
| 2 st | 12.70058636 kg |
| 3 st | 19.05087954 kg |
| 4 st | 25.40117272 kg |
| 5 st | 31.7514659 kg |
| 6 st | 38.10175908 kg |
| 7 st | 44.45205226 kg |
| 8 st | 50.80234544 kg |
| 9 st | 57.15263862 kg |
| 10 st | 63.5029318 kg |
| 15 st | 95.2543977 kg |
| 20 st | 127.0058636 kg |
| 25 st | 158.7573295 kg |
| 30 st | 190.5087954 kg |
| 40 st | 254.0117272 kg |
| 50 st | 317.514659 kg |
| 75 st | 476.2719885 kg |
| 100 st | 635.029318 kg |
| 250 st | 1,587.573295 kg |
| 500 st | 3,175.14659 kg |
| 1,000 st | 6,350.29318 kg |
About stone and kilograms
The stone is 14 pounds (about 6.35 kg). It is still commonly used for body weight in the UK and Ireland.
The kilogram is the SI base unit of mass, defined since 2019 by the Planck constant. Body weight and most goods are measured in kilograms worldwide.
Other Weight conversions
Frequently asked questions
How do I convert stone to kilograms?
Use the formula kg = st × 6.35029318. For example, 10 st = 63.5029318 kg.
What is 1 stone in kilograms?
1 st = 6.35029318 kg.
How do I convert kilograms back to stone?
Use st = kg × 0.1574730444. 1 kg = 0.1574730444 st.