Carats to Grams
Convert carats (ct) to grams (g) instantly — with formula and reference table.
ct
g
Quick answer: 1 ct = 0.2 g. To convert carats to grams, multiply by ct × 0.2.
Converting carats to grams
This converter changes a value in carats (ct) into grams (g). One carat equals 0.2 g. One metric carat equals exactly 0.2 grams. Carats measure the weight of gemstones. The conversion runs entirely in your browser — enter a value and the result updates instantly, in either direction.
Formula
g = ct × 0.2
Example
Convert 10 ct to g: 10 × 0.2 = 2 g.
Carats to Grams conversion table
| Carats (ct) | Grams (g) |
|---|---|
| 1 ct | 0.2 g |
| 2 ct | 0.4 g |
| 3 ct | 0.6 g |
| 5 ct | 1 g |
| 10 ct | 2 g |
| 20 ct | 4 g |
| 25 ct | 5 g |
| 50 ct | 10 g |
| 100 ct | 20 g |
How to use this converter
- Enter a value in the carats (ct) field.
- Read the converted value in grams (g) below.
- Type into the g field instead to convert in reverse, or use the swap button.
Frequently asked questions
How many grams is a carat?
1 carat equals 0.2 grams.
How do I convert 5 carats to grams?
5 times 0.2 = 1 gram.
Is carat the same as karat?
No. Carat is gemstone weight; karat (k) measures gold purity out of 24.