Convert Ounces to Carats

Enter the weight in ounces below to get the value converted to carats.

Results in Carats:

1 oz = 141.747616 ct

Do you want to convert carats to ounces?

How to Convert Ounces to Carats

conversion scale showing ounces and equivalent carats weight values

To convert an ounce measurement to a carat measurement, multiply the weight by the conversion ratio. One ounce is equal to 141.747616 carats, so use this simple formula to convert:

carats = ounces × 141.747616

The weight in carats is equal to the ounces multiplied by 141.747616.

For example, here's how to convert 5 ounces to carats using the formula above.

5 oz = (5 × 141.747616) = 708.738078 ct

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

Ounce measurements converted to carats
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/weights-and-measures/laws-and-regulations/precious-metals-conversion