Convert Stone to Kilogram
Convert Stone to Kilogram instantly. 1 st = 6.350293 kg. Formula, worked examples and a quick reference table.
Last updated
One stone equals 6.350293 kilograms. To convert any number of stones to kilograms, multiply by 6.35029318.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Stone to Kilogram formula
To go the other way, use stone = kilogram ÷ 6.35029318.
About these units
The stone equals 14 pounds and remains in everyday use for body weight in Britain and Ireland, while being essentially unknown elsewhere.
Since 2019 the kilogram has been defined by the Planck constant rather than a metal cylinder in Paris, making it reproducible in any properly equipped laboratory.
Stone to Kilogram conversion table
| Stone | Kilogram |
|---|---|
| 1 st | 6.3503 kg |
| 2 st | 12.7006 kg |
| 3 st | 19.0509 kg |
| 5 st | 31.7515 kg |
| 10 st | 63.5029 kg |
| 20 st | 127.0059 kg |
| 25 st | 158.7573 kg |
| 50 st | 317.5147 kg |
| 100 st | 635.0293 kg |
| 250 st | 1,587.5733 kg |
| 500 st | 3,175.1466 kg |
| 1,000 st | 6,350.2932 kg |
Frequently asked questions
How many kilograms are in a stone? +
There are 6.350293 kilograms in one stone.
What is 10 st in kg? +
10 st equals 63.5029 kg. Multiply 10 by 6.35029318.
How do I convert kilogram back to stone? +
Use stone = kilogram ÷ 6.35029318. The converter above handles both directions, or see our dedicated Kilogram to Stone page.