Convert troy ounces to milligrams
1 oz t = 31,103.48 mg. Change the amount below, or read the formula and the reference table further down.
1 troy ounce equals
milligrams
1 oz t = 31,103.48 mg
The formula
Troy ounces and milligrams both measure weight & mass from the same zero, so a single multiplier does the job.
mg = oz t × 31,103.48
Going the other way? Convert milligrams to troy ounces.
Troy ounces to milligrams table
Common values, rounded for reading.
| Troy ounces (oz t) | Milligrams (mg) |
|---|---|
| 1 | 31,103.48 |
| 2 | 62,206.95 |
| 3 | 93,310.43 |
| 4 | 124,413.91 |
| 5 | 155,517.38 |
| 6 | 186,620.86 |
| 7 | 217,724.34 |
| 8 | 248,827.81 |
| 9 | 279,931.29 |
| 10 | 311,034.77 |
| 15 | 466,552.15 |
| 20 | 622,069.54 |
| 25 | 777,586.92 |
| 30 | 933,104.3 |
| 40 | 1,244,139.07 |
| 50 | 1,555,173.84 |
| 75 | 2,332,760.76 |
| 100 | 3,110,347.68 |
| 250 | 7,775,869.2 |
| 500 | 15,551,738.4 |
| 1,000 | 31,103,476.8 |
Questions people ask
- How many milligrams are in a troy ounce?
- One troy ounce equals 31,103.48 milligrams.
- How do I convert troy ounces to milligrams by hand?
- Multiply the number of troy ounces by 31,103.48. For a rough check, 31,103.48 is close enough for most everyday use.
- What is 1 troy ounce in milligrams?
- 1 troy ounce is 31,103.48 milligrams.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.