Density and Mass
oztost
Convert ounces (avoirdupois) (oz) to stones (st).
Factor1 oz = 0.004464288 st
Converter
oz
Accepts numbers or expressions, e.g. 150 + 14.7
Result
st
Rendered to 6 significant figures.
Formula
Formula
st = oz × 0.004464288
Multiply any value in ounces (avoirdupois) by 0.004464288 to obtain the value in stones.
Worked example
Convert 224 oz to st.
- 01Start with 224 oz.
- 02Multiply by the conversion factor: 224 × 0.004464288 = 1 st.
Result224 oz = 1 st
Conversion table
| oz | st |
|---|---|
| 1 | 0.0044643 |
| 2 | 0.0089286 |
| 5 | 0.022321 |
| 10 | 0.044643 |
| 20 | 0.089286 |
| 50 | 0.22321 |
| 100 | 0.44643 |
| 200 | 0.89286 |
| 500 | 2.2321 |
| 1000 | 4.4643 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from oz to st?
1 oz equals 0.004464288 st. To convert, multiply the value in ounces (avoirdupois) by 0.004464288.
How do I convert 1 oz to st?
1 oz = 0.00446429 st. For any value, multiply by 0.004464288.
How do I convert st back to oz?
Divide by the same factor — or equivalently, multiply by 223.9999. So 1 st = 224 oz.
When would I need to convert ounce (avoirdupois) to stone (UK avoirdupois)?
Mass conversions appear in material balances, reagent dosing, and reconciling vendor specifications across imperial/metric systems.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).