Density and Mass
mgtost
Convert milligrams (mg) to stones (st).
Factor1 mg = 1.574731e-7 st
Converter
mg
Accepts numbers or expressions, e.g. 150 + 14.7
Result
st
Rendered to 6 significant figures.
Formula
Formula
st = mg × 1.574731e-7
Multiply any value in milligrams by 1.574731e-7 to obtain the value in stones.
Worked example
Convert 1.00000e+6 mg to st.
- 01Start with 1.00000e+6 mg.
- 02Multiply by the conversion factor: 1.00000e+6 × 1.574731e-7 = 0.157473 st.
Result1.00000e+6 mg = 0.157473 st
Conversion table
| mg | st |
|---|---|
| 1 | 1.5747e-7 |
| 2 | 3.1495e-7 |
| 5 | 7.8737e-7 |
| 10 | 1.5747e-6 |
| 20 | 3.1495e-6 |
| 50 | 7.8737e-6 |
| 100 | 1.5747e-5 |
| 200 | 3.1495e-5 |
| 500 | 7.8737e-5 |
| 1000 | 0.00015747 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mg to st?
1 mg equals 1.574731e-7 st. To convert, multiply the value in milligrams by 1.574731e-7.
How do I convert 1 mg to st?
1 mg = 1.57473e-7 st. For any value, multiply by 1.574731e-7.
How do I convert st back to mg?
Divide by the same factor — or equivalently, multiply by 6350290. So 1 st = 6.35029e+6 mg.
When would I need to convert milligram 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).