Carats to Grams Converter

Enter the weight in carats below to convert it to grams.

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Result in Grams:

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5 ct = 1 g

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How to Convert Carats to Grams

To convert a measurement in carats to a measurement in grams, divide the weight by the following conversion ratio: 5 carats/gram.

Since one gram is equal to 5 carats, you can use this simple formula to convert:

grams = carats ÷ 5

The weight in grams is equal to the weight in carats divided by 5.

For example, here's how to convert 5 carats to grams using the formula above.
grams = (5 ct ÷ 5) = 1 g
conversion scale showing carats and equivalent grams weight values

How Many Grams Are in a Carat?

There are 0.2 grams in a carat, which is why we use this value in the formula above.

1 ct = 0.2 g

Carats and grams are both units used to measure weight. Keep reading to learn more about each unit of measure.

What Is a Carat?

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.

Learn more about carats.

What Is a Gram?

A gram is a unit of mass equal to 1/1,000 of a kilogram or 0.035274 ounces, and is equivalent to the mass of one cubic centimeter, or one milliliter, 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.

Learn more about grams.

Carat to Gram Conversion Table

Table showing various carat measurements converted to grams.
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

  1. National Institute of Standards and Technology, Precious Metals Conversion Information, https://www.nist.gov/pml/owm/laws-and-regulations/precious-metals-conversion

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