Convert ounces to troy ounces
1 oz = 0.91145833 oz t. Change the amount below, or read the formula and the reference table further down.
1 ounce equals
troy ounces
1 oz = 0.91145833 oz t
The formula
Ounces and troy ounces both measure weight & mass from the same zero, so a single multiplier does the job.
oz t = oz × 0.9114583333
Going the other way? Convert troy ounces to ounces.
Ounces to troy ounces table
Common values, rounded for reading.
| Ounces (oz) | Troy ounces (oz t) |
|---|---|
| 1 | 0.911458 |
| 2 | 1.8229 |
| 3 | 2.7344 |
| 4 | 3.6458 |
| 5 | 4.5573 |
| 6 | 5.4688 |
| 7 | 6.3802 |
| 8 | 7.2917 |
| 9 | 8.2031 |
| 10 | 9.1146 |
| 15 | 13.6719 |
| 20 | 18.2292 |
| 25 | 22.7865 |
| 30 | 27.3438 |
| 40 | 36.4583 |
| 50 | 45.5729 |
| 75 | 68.3594 |
| 100 | 91.1458 |
| 250 | 227.86 |
| 500 | 455.73 |
| 1,000 | 911.46 |
Questions people ask
- How many troy ounces are in a ounce?
- One ounce equals 0.9114583333 troy ounces.
- How do I convert ounces to troy ounces by hand?
- Multiply the number of ounces by 0.9114583333. For a rough check, 0.911 is close enough for most everyday use.
- What is 1 ounce in troy ounces?
- 1 ounce is 0.91145833 troy ounces.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.