Carats to Grams Conversion
Enter the weight in carats below to get the value converted to grams.
How to Convert Carats to Grams
To convert a carat measurement to a gram measurement, divide the weight by the conversion ratio.
Since one gram is equal to 5 carats, you can use this simple formula to convert:
The weight in grams is equal to the carats divided by 5.

Carats and grams are both units used to measure weight. Keep reading to learn more about each unit of measure.
Carats
The carat is a unit of mass/weight equal to 200 milligrams.[1]
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.
Grams
A gram is the mass/weight equal to 1/1,000 of a kilogram and is roughly equivalent to the mass of one cubic centimeter of water.
The gram, or gramme, is an SI unit of weight in the metric system. Grams can be abbreviated as g; for example, 1 gram can be written as 1 g.
Carat to Gram Conversion Table
Carats | Grams |
---|---|
1 ct | 0.2 g |
2 ct | 0.4 g |
3 ct | 0.6 g |
4 ct | 0.8 g |
5 ct | 1 g |
6 ct | 1.2 g |
7 ct | 1.4 g |
8 ct | 1.6 g |
9 ct | 1.8 g |
10 ct | 2 g |
11 ct | 2.2 g |
12 ct | 2.4 g |
13 ct | 2.6 g |
14 ct | 2.8 g |
15 ct | 3 g |
16 ct | 3.2 g |
17 ct | 3.4 g |
18 ct | 3.6 g |
19 ct | 3.8 g |
20 ct | 4 g |
21 ct | 4.2 g |
22 ct | 4.4 g |
23 ct | 4.6 g |
24 ct | 4.8 g |
25 ct | 5 g |
26 ct | 5.2 g |
27 ct | 5.4 g |
28 ct | 5.6 g |
29 ct | 5.8 g |
30 ct | 6 g |
31 ct | 6.2 g |
32 ct | 6.4 g |
33 ct | 6.6 g |
34 ct | 6.8 g |
35 ct | 7 g |
36 ct | 7.2 g |
37 ct | 7.4 g |
38 ct | 7.6 g |
39 ct | 7.8 g |
40 ct | 8 g |
References
- National Institute of Standards and Technology, Precious Metals Conversion Information, https://www.nist.gov/pml/owm/laws-and-regulations/precious-metals-conversion