Stone to Kilograms
Type a value in Stone and get the result in Kilograms, calculated exactly.
1 Stone = 6.35029318 Kilograms
Precision
Exact factorThis result is exact.
Slide rule
Drag to scrub · arrow keys step · Shift × 10Paper tape
ConvertThemAll
- Your conversions print here.
0 lines · kept on this device only
Formula
kg = st × 6.35029318
To convert Stone to Kilograms, multiply the value by 6.35029318.
Worked examples
- 1 st × 6.35029318 = 6.35029318 kg
- 100 st × 6.35029318 = 635.029318 kg
- 50 st × 6.35029318 = 317.514659 kg
This factor is exact by definition.
Conversion table
| Stone (st) | Kilograms (kg) |
|---|---|
| 1 | 6.35029318 |
| 2 | 12.70058636 |
| 3 | 19.05087954 |
| 4 | 25.40117272 |
| 5 | 31.7514659 |
| 6 | 38.10175908 |
| 7 | 44.45205226 |
| 8 | 50.80234544 |
| 9 | 57.15263862 |
| 10 | 63.5029318 |
| 15 | 95.2543977 |
| 20 | 127.0058636 |
| 25 | 158.7573295 |
| 30 | 190.5087954 |
| 40 | 254.0117272 |
| 50 | 317.514659 |
| 60 | 381.0175908 |
| 70 | 444.5205226 |
| 75 | 476.2719885 |
| 80 | 508.0234544 |
| 90 | 571.5263862 |
| 100 | 635.029318 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: Kilograms to Stone
| Kilograms (kg) | Stone (st) |
|---|---|
| 1 | ≈ 0.157473 |
| 2 | ≈ 0.3149461 |
| 3 | ≈ 0.4724191 |
| 4 | ≈ 0.6298922 |
| 5 | ≈ 0.7873652 |
| 6 | ≈ 0.9448383 |
| 7 | ≈ 1.102311 |
| 8 | ≈ 1.259784 |
| 9 | ≈ 1.417257 |
| 10 | ≈ 1.57473 |
| 15 | ≈ 2.362096 |
| 20 | ≈ 3.149461 |
| 25 | ≈ 3.936826 |
| 30 | ≈ 4.724191 |
| 40 | ≈ 6.298922 |
| 50 | ≈ 7.873652 |
| 60 | ≈ 9.448383 |
| 70 | ≈ 11.02311 |
| 75 | ≈ 11.81048 |
| 80 | ≈ 12.59784 |
| 90 | ≈ 14.17257 |
| 100 | ≈ 15.7473 |
Unit definitions
- Stone st
- Exactly 14 pounds, or 6.35029318 kilograms.
- Kilograms kg
- The SI base unit of mass, defined through the Planck constant.
Questions people ask
Stone to Kilograms: what is the conversion factor?
One st is 6.35029318 kg.
How do I convert Stone to Kilograms?
Use the formula above. For example, 100 st = 635.029318 kg.
Is the conversion exact?
Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.
Factors checked 19 October 2026.