Ounces to Stones
Convert ounces to stones instantly. 1 oz = 0.0044642857 st. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert ounces to stones
To convert ounces to stones, divide by 224 (multiply by 0.0044642857). 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 = oz × 0.0044642857
Ounces to Stones conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Ounces | Stones |
|---|---|
| 1 oz | 0.004464 st |
| 2 oz | 0.008929 st |
| 3 oz | 0.013393 st |
| 5 oz | 0.022321 st |
| 10 oz | 0.044643 st |
| 20 oz | 0.089286 st |
| 25 oz | 0.111607 st |
| 50 oz | 0.223214 st |
| 100 oz | 0.446429 st |
| 500 oz | 2.232143 st |
| 1,000 oz | 4.464286 st |
What is a ounce?
A sixteenth of a pound, exactly 28.349523125 g.
What is a stone?
14 pounds. Still the everyday unit for body weight in the UK and Ireland.
The formula
st = oz × 0.0044642857
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 Ounces to Stones
- Type the number of ounces 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 ounces page.
Ounces to Stones — frequently asked questions
How many stones are in a ounce?
One ounce equals 0.0044642857 st. st = oz × 0.0044642857
What is the formula to convert ounces to stones?
The formula is st = oz × 0.0044642857. 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 ounces?
Divide instead of multiplying: one stone is 224 oz. 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 ounces 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