Instant conversion
Stone To kg Converter
1 stone = 6.35029 kilograms. Multiply stone by 6.35029.
What does this tool do?
Stone To kg Converter computes the result directly in your browser — 1 stone = 6.35029 kilograms. Multiply stone by 6.35029. Nothing you enter is uploaded or stored.
- 1 stone = 6.35029 kilograms. Multiply stone by 6.35029.
- Reverse: 1 kg = 0.157473 st
- A stone is 14 pounds, about 6.35 kg. Real-world anchor: UK and Ireland measure body weight in stone.
Common st to kg conversions
| st | kg |
|---|---|
| 0.5 | 3.175 |
| 1 | 6.35 |
| 2 | 12.7 |
| 3 | 19.05 |
| 5 | 31.75 |
| 10 | 63.5 |
| 20 | 127 |
| 50 | 317.5 |
| 100 | 635 |
| 200 | 1270 |
| 500 | 3175 |
| 1000 | 6350.29 |
How this conversion works
1 stone = 6.35029 kilograms. Multiply stone by 6.35029.
Privacy: Conversions run in this browser. Nothing you type is uploaded.
Why this conversion is exact
The exact factor behind this page: 1 st = 6.35029 kg. That value is a defined standard, not a measurement, so every conversion on this page is exact up to the digits shown. The most common practical error is mixing up which direction the factor runs: multiply when going from st to kg, divide when returning.
Rounding is display-only. The converter keeps full precision internally, so chained conversions (this unit to another and back) return to the starting value without drift, which hand-rounded tables cannot promise.
What you are converting
Stone
A stone is 14 pounds, about 6.35 kg. Real-world anchor: UK and Ireland measure body weight in stone.
Kilogram
A kilogram is the base metric unit of mass. Real-world anchor: a 1-liter bottle of water weighs about 1 kg.
Why convert and when you would use this
Converting UK body-weight records into the metric used by most of the world.
Worked example
Worked example: 10 st x 6.35029 = 63.5029 kg.
Rounding and accuracy
Use 2-4 decimal places for everyday tasks; keep more for engineering or lab precision.
Frequently asked questions
How do you convert st to kg?
1 stone = 6.35029 kilograms. Multiply stone by 6.35029.
What is the formula for st to kg?
1 stone = 6.35029 kilograms. Multiply stone by 6.35029.
What should I round to?
Use 2-4 decimal places for everyday tasks; keep more for engineering.