Stone to Kilograms Converter
Quickly convert stone (st) to kilograms (kg) with precision. Enter a value and get instant results.
1 Stone (st) = 6.35029 Kilogram (kg)
Conversion Table
| Stone (st) | Kilogram (kg) |
|---|---|
| 1 st | 6.35029 kg |
| 5 st | 31.75145 kg |
| 10 st | 63.5029 kg |
| 25 st | 158.75725 kg |
| 50 st | 317.5145 kg |
| 100 st | 635.029 kg |
| 500 st | 3175.145 kg |
| 1000 st | 6350.29 kg |
What Is Stone to Kilograms Conversion?
Converting stone to kilograms translates the traditional British imperial weight unit to the international metric standard. One stone equals exactly 6.35029 kilograms (or precisely 14 pounds). This conversion is needed when translating UK body weight measurements into the metric system used internationally. Medical professionals, fitness trainers working with international clients, and travelers between the UK and metric countries frequently need this conversion.
Conversion Formula
Kilograms = Stone × 6.35029
When Do You Need This Conversion?
You need stone to kg conversion when entering weight data into metric-based health apps or medical forms, when traveling from the UK to countries using the metric system, when comparing weight references from British sources with international standards, or when a UK-based doctor's records need to be shared with healthcare providers in metric countries.
Frequently Asked Questions
One stone equals exactly 6.35029318 kilograms (commonly rounded to 6.35 kg). This is derived from the definition of 1 stone = 14 pounds and 1 pound = 0.45359237 kg. Quick reference: 8 st = 50.8 kg, 10 st = 63.5 kg, 12 st = 76.2 kg, 14 st = 88.9 kg, 16 st = 101.6 kg.
First convert everything to pounds (stone × 14 + remaining pounds), then multiply by 0.453592. For example, 11 st 7 lbs = (11 × 14) + 7 = 161 lbs, then 161 × 0.453592 = 73.03 kg. Alternatively, multiply stone by 6.35029 and add pounds × 0.453592.
Stone is primarily used in the United Kingdom and Ireland for body weight. It was historically used in other Commonwealth countries but has largely been replaced by kilograms in Australia, Canada, New Zealand, and South Africa. In the US, pounds are used instead. The stone remains a distinctly British and Irish cultural unit for everyday weight discussion.