1 ounce to carats
1 oz = 141.75 ct. Change the amount below, or read the formula and the reference table further down.
1 ounce equals
carats
1 oz = 141.75 ct
The formula
Ounces and carats both measure weight & mass from the same zero, so a single multiplier does the job.
ct = oz × 141.75
Going the other way? Convert carats to ounces.
Ounces to carats table
Values either side of 1 oz.
| Ounces (oz) | Carats (ct) |
|---|---|
| -4 | -566.99 |
| -3.5 | -496.12 |
| -3 | -425.24 |
| -2.5 | -354.37 |
| -2 | -283.5 |
| -1.5 | -212.62 |
| -1 | -141.75 |
| -0.5 | -70.8738 |
| 0 | 0 |
| 0.5 | 70.8738 |
| 1 | 141.75 |
| 1.5 | 212.62 |
| 2 | 283.5 |
| 2.5 | 354.37 |
| 3 | 425.24 |
| 3.5 | 496.12 |
| 4 | 566.99 |
| 4.5 | 637.86 |
| 5 | 708.74 |
| 5.5 | 779.61 |
| 6 | 850.49 |
Questions people ask
- How many carats are in a ounce?
- One ounce equals 141.75 carats.
- How do I convert ounces to carats by hand?
- Multiply the number of ounces by 141.75. For a rough check, 141.75 is close enough for most everyday use.
- What is 1 ounce in carats?
- 1 ounce is 141.75 carats.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.