Carats to grams converter
Grams (g)
1 carat = 0.2 grams
How to convert carats to grams
g = ct × 0.2
Multiply the number of carats by 0.2 to get grams. Going the other way, divide by 0.2 (or multiply by 5).
One carat is exactly defined as 0.2 grams (to 12 significant figures), and one gram is 5 carats.
Worked examples
- Convert 5 carats: 5 × 0.2 = 1 1 gram.
- Convert 12.5 carats: 12.5 × 0.2 = 2.5 2.5 grams.
- Convert 250 carats: 250 × 0.2 = 50 50 grams.
Quick-reference table
| ct | g |
|---|---|
| 1 | 0.2 |
| 2 | 0.4 |
| 3 | 0.6 |
| 5 | 1 |
| 10 | 2 |
| 15 | 3 |
| 20 | 4 |
| 25 | 5 |
| 50 | 10 |
| 75 | 15 |
| 100 | 20 |
| 1,000 | 200 |
| g | ct |
|---|---|
| 1 | 5 |
| 2 | 10 |
| 3 | 15 |
| 5 | 25 |
| 10 | 50 |
| 15 | 75 |
| 20 | 100 |
| 25 | 125 |
| 50 | 250 |
| 75 | 375 |
| 100 | 500 |
| 1,000 | 5,000 |
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Frequently asked questions
How many grams are in 1 carat?
1 carat equals 0.2 grams.
What is the formula to convert carats to grams?
Use g = ct × 0.2. Multiply the number of carats by 0.2 to get grams. Going the other way, divide by 0.2 (or multiply by 5).
What is 100 carats in grams?
100 carats is 20 grams.