To convert troy ounces to milligrams, multiply the value by 31,103.5. To go the other way, multiply milligrams by 3.21507 × 10⁻⁵ to get troy ounces.
| Troy Ounces (oz t) | Milligrams (mg) |
|---|---|
| 1 oz t | 31,103.5 mg |
| 2 oz t | 62,207 mg |
| 3 oz t | 93,310.4 mg |
| 4 oz t | 124,414 mg |
| 5 oz t | 155,517 mg |
| 6 oz t | 186,621 mg |
| 7 oz t | 217,724 mg |
| 8 oz t | 248,828 mg |
| 9 oz t | 279,931 mg |
| 10 oz t | 311,035 mg |
| 12 oz t | 373,242 mg |
| 14 oz t | 435,449 mg |
| 15 oz t | 466,552 mg |
| 20 oz t | 622,070 mg |
| 21 oz t | 653,173 mg |
| 24 oz t | 746,483 mg |
| 25 oz t | 777,587 mg |
| 30 oz t | 933,104 mg |
| 40 oz t | 1,244,140 mg |
| 50 oz t | 1,555,170 mg |
| 60 oz t | 1,866,210 mg |
| 75 oz t | 2,332,760 mg |
| 80 oz t | 2,488,280 mg |
| 100 oz t | 3,110,350 mg |
| 200 oz t | 6,220,700 mg |
| 250 oz t | 7,775,870 mg |
| 300 oz t | 9,331,040 mg |
| 400 oz t | 12,441,400 mg |
| 500 oz t | 15,551,700 mg |
| 750 oz t | 23,327,600 mg |
| 1,000 oz t | 31,103,500 mg |
Troy ounce (oz t). The troy ounce (31.1035 g) is the international unit for gold, silver and platinum prices.
Milligram (mg). A milligram is one thousandth of a gram, used for medicine doses and nutrition labels.
There are 31,103.5 milligrams in one troy ounce.
Multiply the number of troy ounces by 31,103.5. For example, 10 troy ounces equal 311,035 milligrams.
One milligram equals 3.21507 × 10⁻⁵ troy ounces.
373,242 milligrams. Other common values: 5 troy ounces = 155,517 milligrams and 100 troy ounces = 3,110,350 milligrams.