Troy Ounces to Milligrams
Convert troy ounces (oz t) to milligrams (mg). Type in either box; the other updates as you go.
How to convert troy ounces to milligrams
To convert troy ounces to milligrams, multiply the number of troy ounces by 31,103.4768.
Example
Convert 5 troy ounces to milligrams:
Troy Ounce to milligram conversion chart
| Troy Ounces (oz t) | Milligrams (mg) |
|---|---|
| 1 oz t | 31,103.48 mg |
| 2 oz t | 62,206.95 mg |
| 3 oz t | 93,310.43 mg |
| 4 oz t | 124,413.9 mg |
| 5 oz t | 155,517.4 mg |
| 6 oz t | 186,620.9 mg |
| 7 oz t | 217,724.3 mg |
| 8 oz t | 248,827.8 mg |
| 9 oz t | 279,931.3 mg |
| 10 oz t | 311,034.8 mg |
| 12 oz t | 373,241.7 mg |
| 15 oz t | 466,552.2 mg |
| 20 oz t | 622,069.5 mg |
| 25 oz t | 777,586.9 mg |
| 30 oz t | 933,104.3 mg |
| 40 oz t | 1,244,139 mg |
| 50 oz t | 1,555,174 mg |
| 60 oz t | 1,866,209 mg |
| 70 oz t | 2,177,243 mg |
| 75 oz t | 2,332,761 mg |
| 80 oz t | 2,488,278 mg |
| 90 oz t | 2,799,313 mg |
| 100 oz t | 3,110,348 mg |
| 150 oz t | 4,665,522 mg |
| 200 oz t | 6,220,695 mg |
| 250 oz t | 7,775,869 mg |
| 500 oz t | 15,551,738 mg |
| 1,000 oz t | 31,103,477 mg |
Going the other way? See the milligrams to troy ounces chart.
About the units
Troy Ounce (oz t)
A troy ounce is 31.1034768 grams, about 10% heavier than an ordinary ounce. Gold, silver and platinum prices are quoted per troy ounce.
Milligram (mg)
A milligram is one thousandth of a gram. Medicine doses and nutrition labels use milligrams.
Frequently asked questions
How many milligrams are in a troy ounce?
There are 31,103.4768 milligrams in a troy ounce.
How many troy ounces are in a milligram?
There are 0.00003215074657 troy ounces in a milligram.
How do you convert troy ounces to milligrams?
To convert troy ounces to milligrams, multiply the number of troy ounces by 31,103.4768.
What is 5 troy ounces in milligrams?
5 troy ounces equals 155,517 milligrams.
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