Stone to KG converter
1 st = 6.35029318 kg
A stone is 14 lb, so 6.350 293 18 kg exactly. It is still how many people in the UK and Ireland state body weight, often as stone and pounds.
11 st = 69.85322498 kg
Formula: kg = st × 6.35029318
11 st in every weight unit
- milligram
- gram
- kilogram
- tonne
- ounce
- pound
- short ton (US)
- long ton (UK)
How to convert stone to kilograms
kg = st × 6.35029318
Example: 11 st × 6.35029318 = 69.85322498 kg.
stone: 1 st = 14 lb = 6.350 293 18 kg (UK Weights and Measures Act 1985)
kilogram: SI base unit, fixed by the Planck constant (BIPM SI Brochure)
Where the number 6.3502932 comes from
Nothing is measured here. Every step below is a definition written into law or into the SI.
1 st
Stone to KG table
| stone (st) | kilograms (kg) |
|---|---|
| 1 | 6.350293 |
| 5 | 31.75147 |
| 6 | 38.10176 |
| 7 | 44.45205 |
| 8 | 50.80235 |
| 9 | 57.15264 |
| 10 | 63.50293 |
| 10.5 | 66.67808 |
| 11 | 69.85322 |
| 11.5 | 73.02837 |
| 12 | 76.20352 |
| 12.5 | 79.37866 |
| 13 | 82.55381 |
| 13.5 | 85.72896 |
| 14 | 88.9041 |
| 15 | 95.2544 |
| 16 | 101.6047 |
| 17 | 107.955 |
| 18 | 114.3053 |
| 20 | 127.0059 |
| 25 | 158.7573 |
Questions
How many kilograms are in 1 stone?
1 st = 6.35029318 kg.
What is the formula to convert stone to kilograms?
kg = st × 6.35029318. 1 st = 14 lb = 6.350 293 18 kg; SI base unit, fixed by the Planck constant.
Is this conversion exact?
Yes. Both units are defined exactly (UK Weights and Measures Act 1985; BIPM SI Brochure), so the factor is exact and results are only rounded for display.
What is 11 st in kg?
11 st = 69.85322498 kg.