Convert carats to troy ounces
1 ct = 0.00643015 oz t. Change the amount below, or read the formula and the reference table further down.
1 carat equals
troy ounces
1 ct = 0.00643015 oz t
The formula
Carats and troy ounces both measure weight & mass from the same zero, so a single multiplier does the job.
oz t = ct × 0.0064301493
Going the other way? Convert troy ounces to carats.
Carats to troy ounces table
Common values, rounded for reading.
| Carats (ct) | Troy ounces (oz t) |
|---|---|
| 1 | 0.00643 |
| 2 | 0.01286 |
| 3 | 0.01929 |
| 4 | 0.025721 |
| 5 | 0.032151 |
| 6 | 0.038581 |
| 7 | 0.045011 |
| 8 | 0.051441 |
| 9 | 0.057871 |
| 10 | 0.064301 |
| 15 | 0.096452 |
| 20 | 0.128603 |
| 25 | 0.160754 |
| 30 | 0.192904 |
| 40 | 0.257206 |
| 50 | 0.321507 |
| 75 | 0.482261 |
| 100 | 0.643015 |
| 250 | 1.6075 |
| 500 | 3.2151 |
| 1,000 | 6.4301 |
Questions people ask
- How many troy ounces are in a carat?
- One carat equals 0.0064301493 troy ounces.
- How do I convert carats to troy ounces by hand?
- Multiply the number of carats by 0.0064301493. For a rough check, 0.006 is close enough for most everyday use.
- What is 1 carat in troy ounces?
- 1 carat is 0.00643015 troy ounces.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.