Kilograms to Stones
Convert kilograms to stones instantly. 1 kg = 0.1574730444 st. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert kilograms to stones
To convert kilograms to stones, divide by 6.35029318 (multiply by 0.1574730444). The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
st = kg × 0.1574730444
Kilograms to Stones conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Kilograms | Stones |
|---|---|
| 1 kg | 0.157473 st |
| 2 kg | 0.314946 st |
| 3 kg | 0.472419 st |
| 5 kg | 0.787365 st |
| 10 kg | 1.57473 st |
| 20 kg | 3.149461 st |
| 25 kg | 3.936826 st |
| 50 kg | 7.873652 st |
| 100 kg | 15.747304 st |
| 500 kg | 78.736522 st |
| 1,000 kg | 157.473044 st |
What is a kilogram?
The SI base unit of mass, defined since 2019 by the Planck constant.
What is a stone?
14 pounds. Still the everyday unit for body weight in the UK and Ireland.
The formula
st = kg × 0.1574730444
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Kilograms to Stones
- Type the number of kilograms you want to convert.
- Read the result in stones straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked stones to kilograms page.
Kilograms to Stones — frequently asked questions
How many stones are in a kilogram?
One kilogram equals 0.1574730444 st. st = kg × 0.1574730444
What is the formula to convert kilograms to stones?
The formula is st = kg × 0.1574730444. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert stones back to kilograms?
Divide instead of multiplying: one stone is 6.35029318 kg. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this kilograms to stones free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error