Convert troy ounces to carats
1 oz t = 155.52 ct. Change the amount below, or read the formula and the reference table further down.
1 troy ounce equals
carats
1 oz t = 155.52 ct
The formula
Troy ounces and carats both measure weight & mass from the same zero, so a single multiplier does the job.
ct = oz t × 155.52
Going the other way? Convert carats to troy ounces.
Troy ounces to carats table
Common values, rounded for reading.
| Troy ounces (oz t) | Carats (ct) |
|---|---|
| 1 | 155.52 |
| 2 | 311.03 |
| 3 | 466.55 |
| 4 | 622.07 |
| 5 | 777.59 |
| 6 | 933.1 |
| 7 | 1,088.62 |
| 8 | 1,244.14 |
| 9 | 1,399.66 |
| 10 | 1,555.17 |
| 15 | 2,332.76 |
| 20 | 3,110.35 |
| 25 | 3,887.93 |
| 30 | 4,665.52 |
| 40 | 6,220.7 |
| 50 | 7,775.87 |
| 75 | 11,663.8 |
| 100 | 15,551.74 |
| 250 | 38,879.35 |
| 500 | 77,758.69 |
| 1,000 | 155,517.38 |
Questions people ask
- How many carats are in a troy ounce?
- One troy ounce equals 155.52 carats.
- How do I convert troy ounces to carats by hand?
- Multiply the number of troy ounces by 155.52. For a rough check, 155.52 is close enough for most everyday use.
- What is 1 troy ounce in carats?
- 1 troy ounce is 155.52 carats.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.