Convert ounces to stones quickly and accurately using this free online converter
Used for body weight in the UK and Ireland, where stones remain the everyday unit.
💡 The UK commonly reports body weight in stones and pounds (e.g. 11 stone 4); kilograms are used almost everywhere else.
st = oz × 0.00446428
Example: 1 oz × 0.00446428 = 0.00446428 st
Use stones for UK/Ireland body weight; kilograms for international and medical contexts.
Common uses: body weight in the UK and Ireland.
How do I convert oz to st?
Multiply the value in Ounces by 0.00446428. For example: 10 oz = 0.044643 st.
When should I use Stones instead of Ounces?
Use stones for UK/Ireland body weight; kilograms for international and medical contexts.
Is this converter accurate?
Yes. We use internationally recognized conversion factors, updated to current standards.
| Ounces (oz) | Stones (st) |
|---|---|
| 1 oz | 0.00446428 st |
| 2 oz | 0.00892857 st |
| 5 oz | 0.022321 st |
| 10 oz | 0.044643 st |
| 20 oz | 0.089286 st |
| 50 oz | 0.223214 st |
| 100 oz | 0.446428 st |
| 200 oz | 0.892857 st |
| 500 oz | 2.2321 st |
| 1000 oz | 4.4643 st |