Convert gram (g) to carat (ct).
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Carat to Gram Converter (ct to g)
Convert carat (ct) to gram (g).Unit Converter · Mass
Quick answer
1 carat (ct) is equal to 0.2 grams (g). 1 gram (g) is equal to 5 carats (ct).
To convert ct to g, multiply the value in carats by 0.2 (or divide by 5). For example, 10 ct = 2 g, and 100 ct = 20 g.
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How to convert carats to grams
How many grams are in a carat? 1 carat is 0.2 grams. This free ct to g converter and carat to gram calculator gives the answer instantly for any value, and the same conversion is also written as ct to gm.
To convert carat (ct) to gram (g), multiply the value in carats by 0.2, or divide it by 5.
g = ct × 0.2
- 1
Take the value in carats
For example, 25 ct.
- 2
Multiply by 0.2
25 × 0.2.
- 3
Read the answer in grams
25 ct = 5 g.
Carat to Gram conversion table
Common values from 1 to 1,000 carats converted to grams.
| Carat (ct) | Gram (g) |
|---|---|
| 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 |
| 15 ct | 3 g |
| 20 ct | 4 g |
| 25 ct | 5 g |
| Carat (ct) | Gram (g) |
|---|---|
| 30 ct | 6 g |
| 40 ct | 8 g |
| 50 ct | 10 g |
| 60 ct | 12 g |
| 70 ct | 14 g |
| 75 ct | 15 g |
| 80 ct | 16 g |
| 90 ct | 18 g |
| 100 ct | 20 g |
| 250 ct | 50 g |
| 500 ct | 100 g |
| 1,000 ct | 200 g |
About carats and grams
Carat (ct)
A carat (ct) is exactly 200 milligrams (0.2 gram). It is the unit for the weight of diamonds and other gemstones, and is not the same as the karat that measures gold purity.
Gram (g)
A gram (g) is one thousandth of a kilogram. It is used for food portions, jewelry and small weights.
ct to g: common questions
- How many grams are in 1 carat?
- 1 carat (ct) is equal to 0.2 grams (g). In short: 1 ct = 0.2 g.
- How do I convert carats to grams?
- To convert ct to g, multiply the value in carats by 0.2 (or divide by 5). For example, 5 ct = 1 g.
- How do I convert grams to carats?
- To convert g to ct, multiply the value in grams by 5. Or open the Gram to Carat converter, which does it for you.
- What is 10 ct in g, and what is 100 ct?
- 10 ct = 2 g, and 100 ct = 20 g. The table above lists more values from 1 to 1,000.
- Is this ct to g converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
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