Density and Mass
drtost
Convert drams (avoirdupois) (dr) to stones (st).
Factor1 dr = 0.000279018 st
Converter
dr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
st
Rendered to 6 significant figures.
Formula
Formula
st = dr × 0.000279018
Multiply any value in drams (avoirdupois) by 0.000279018 to obtain the value in stones.
Worked example
Convert 3584 dr to st.
- 01Start with 3584 dr.
- 02Multiply by the conversion factor: 3584 × 0.000279018 = 1 st.
Result3584 dr = 1 st
Conversion table
| dr | st |
|---|---|
| 1 | 0.00027902 |
| 2 | 0.00055804 |
| 5 | 0.0013951 |
| 10 | 0.0027902 |
| 20 | 0.0055804 |
| 50 | 0.013951 |
| 100 | 0.027902 |
| 200 | 0.055804 |
| 500 | 0.13951 |
| 1000 | 0.27902 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from dr to st?
1 dr equals 0.000279018 st. To convert, multiply the value in drams (avoirdupois) by 0.000279018.
How do I convert 1 dr to st?
1 dr = 0.000279018 st. For any value, multiply by 0.000279018.
How do I convert st back to dr?
Divide by the same factor — or equivalently, multiply by 3583.998. So 1 st = 3584 dr.
When would I need to convert dram (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).