Ounces to Carats Conversion
Enter the weight in ounces below to get the value converted to carats.
How to Convert Ounces to Carats
To convert an ounce measurement to a carat measurement, multiply the weight by the conversion ratio.
Since one ounce is equal to 141.747616 carats, you can use this simple formula to convert:
The weight in carats is equal to the ounces multiplied by 141.747616.

Ounces and carats are both units used to measure weight. Keep reading to learn more about each unit of measure.
Ounces
One ounce is a unit of mass/weight equal to 1/16 of a pound. The common ounce should not be confused with the troy ounce, which is equal to 1/12 of a troy pound.[1]
The ounce is a US customary and imperial unit of weight. Ounces can be abbreviated as oz; for example, 1 ounce can be written as 1 oz.
Carats
The carat is a unit of mass/weight equal to 200 milligrams.[2]
A carat is sometimes also referred to as a metric carat. Carats can be abbreviated as ct, and are also sometimes abbreviated as CD. For example, 1 carat can be written as 1 ct or 1 CD.
Ounce to Carat Conversion Table
Ounces | Carats |
---|---|
1 oz | 141.75 ct |
2 oz | 283.5 ct |
3 oz | 425.24 ct |
4 oz | 566.99 ct |
5 oz | 708.74 ct |
6 oz | 850.49 ct |
7 oz | 992.23 ct |
8 oz | 1,134 ct |
9 oz | 1,276 ct |
10 oz | 1,417 ct |
11 oz | 1,559 ct |
12 oz | 1,701 ct |
13 oz | 1,843 ct |
14 oz | 1,984 ct |
15 oz | 2,126 ct |
16 oz | 2,268 ct |
17 oz | 2,410 ct |
18 oz | 2,551 ct |
19 oz | 2,693 ct |
20 oz | 2,835 ct |
21 oz | 2,977 ct |
22 oz | 3,118 ct |
23 oz | 3,260 ct |
24 oz | 3,402 ct |
25 oz | 3,544 ct |
26 oz | 3,685 ct |
27 oz | 3,827 ct |
28 oz | 3,969 ct |
29 oz | 4,111 ct |
30 oz | 4,252 ct |
31 oz | 4,394 ct |
32 oz | 4,536 ct |
33 oz | 4,678 ct |
34 oz | 4,819 ct |
35 oz | 4,961 ct |
36 oz | 5,103 ct |
37 oz | 5,245 ct |
38 oz | 5,386 ct |
39 oz | 5,528 ct |
40 oz | 5,670 ct |
References
- James Bucki, Troy Ounce vs. Ounce, The Spruce, https://www.thesprucecrafts.com/troy-ounce-vs-ounce-4588158
- National Institute of Standards and Technology, Precious Metals Conversion Information, https://www.nist.gov/pml/owm/laws-and-regulations/precious-metals-conversion