Stone to Kilograms Converter
Convert stone (st) to kilograms (kg) instantly. Type a value above and the result updates while you type. 1 stone equals 6.35029 kilograms.
Result updates as you type. Values are calculated locally in your browser — nothing is sent to a server.
The formula
1 stone = 6.35029 kilograms
Multiply the stone value by 6.35029 to get kilograms. Or divide by 0.157473 to go the other way.
Stone to kilograms conversion table
| st | kg |
|---|---|
| 1 | 6.35029 |
| 2 | 12.7006 |
| 3 | 19.0509 |
| 4 | 25.4012 |
| 5 | 31.7515 |
| 6 | 38.1018 |
| 7 | 44.4521 |
| 8 | 50.8023 |
| 9 | 57.1526 |
| 10 | 63.5029 |
| 15 | 95.2544 |
| 20 | 127.006 |
| 25 | 158.757 |
| 50 | 317.515 |
| 75 | 476.272 |
| 100 | 635.029 |
Worked examples
- 5 st × 6.35029 = 31.7515 kg
- 30 st × 6.35029 = 190.509 kg
- 165 st × 6.35029 = 1047.8 kg
Conversion factors follow the exact international definitions (SI/BIPM; imperial units per the 1959 International Yard and Pound Agreement, maintained by NIST). NIST unit conversion reference
Factors last verified August 2026 · Built by Jeffrey Tepper.
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Frequently asked questions
How many kilograms are in 1 stone?
1 stone equals 6.35029 kilograms (st → kg).
How do you convert stone to kilograms?
Multiply the number of stone by 6.35029. For example: 10 st × 6.35029 = 63.5029 kg.
What is 50 st in kg?
50 st equals 317.515 kg.
Which is bigger: 1 stone or 1 kilogram?
1 stone is bigger: it equals 6.35029 kilograms.