Convert between length, weight, temperature, volume, speed, area, and digital units.
How to Convert Stones to Kilograms
Multiply the stone value by 6.35029. One stone is defined as exactly 14 pounds, which equals 6.35029318 kg.
Stones to Kilograms Conversion Table
| Stones | Kilograms |
|---|---|
| 0.5 | 3.17515 |
| 1 | 6.35029 |
| 2 | 12.7006 |
| 5 | 31.7515 |
| 10 | 63.5029 |
| 15 | 95.2544 |
| 20 | 127.006 |
| 25 | 158.757 |
| 50 | 317.514 |
| 100 | 635.029 |
| 250 | 1587.57 |
| 500 | 3175.14 |
| 1000 | 6350.29 |
How Many Kilograms in a Stone?
1 stone equals 6.35029 kilograms. To convert any value, multiply the number of stones by 6.35029.
Common Use Cases
People in the United Kingdom and Ireland commonly express body weight in stones, but gym equipment, medical records, and international health guidelines use kilograms. A person weighing 12 stone is about 76.2 kg, and converting is essential for BMI calculations, medication dosing, and comparing weight-loss progress with people using the metric system.
British expats living in continental Europe or other metric countries need to convert their familiar stone-based weight to kilograms for local doctor visits, fitness programs, and driver's license medical exams. Knowing that 10 stone 7 pounds is approximately 66.7 kg prevents confusion during health assessments abroad.
Horse racing and equestrian sports in the UK assign handicap weights in stones and pounds, but international racing bodies and veterinary records use kilograms. A jockey's riding weight of 8 stone 10 (about 55.3 kg) must be converted for international race entries and weigh-in protocols that operate in metric.