Density and Mass
oz ttomg
Convert troy ounces (oz t) to milligrams (mg).
Factor1 oz t = 31103.48 mg
Converter
oz t
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mg
Rendered to 6 significant figures.
Formula
Formula
mg = oz t × 31103.48
Multiply any value in troy ounces by 31103.48 to obtain the value in milligrams.
Worked example
Convert 1 oz t to mg.
- 01Start with 1 oz t.
- 02Multiply by the conversion factor: 1 × 31103.48 = 31103.5 mg.
Result1 oz t = 31103.5 mg
Conversion table
| oz t | mg |
|---|---|
| 1 | 31103 |
| 2 | 62207 |
| 5 | 1.5552e+5 |
| 10 | 3.1103e+5 |
| 20 | 6.2207e+5 |
| 50 | 1.5552e+6 |
| 100 | 3.1103e+6 |
| 200 | 6.2207e+6 |
| 500 | 1.5552e+7 |
| 1000 | 3.1103e+7 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from oz t to mg?
1 oz t equals 31103.48 mg. To convert, multiply the value in troy ounces by 31103.48.
How do I convert 1 oz t to mg?
1 oz t = 31103.5 mg. For any value, multiply by 31103.48.
How do I convert mg back to oz t?
Divide by the same factor — or equivalently, multiply by 3.215075e-5. So 1 mg = 3.21507e-5 oz t.
When would I need to convert troy ounce to milligram?
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).