Convert carats to grams
1 ct = 0.2 g. Change the amount below, or read the formula and the reference table further down.
1 carat equals
grams
1 ct = 0.2 g
The formula
Carats and grams both measure weight & mass from the same zero, so a single multiplier does the job.
g = ct × 0.2
Going the other way? Convert grams to carats.
Carats to grams table
Common values, rounded for reading.
| Carats (ct) | Grams (g) |
|---|---|
| 1 | 0.2 |
| 2 | 0.4 |
| 3 | 0.6 |
| 4 | 0.8 |
| 5 | 1 |
| 6 | 1.2 |
| 7 | 1.4 |
| 8 | 1.6 |
| 9 | 1.8 |
| 10 | 2 |
| 15 | 3 |
| 20 | 4 |
| 25 | 5 |
| 30 | 6 |
| 40 | 8 |
| 50 | 10 |
| 75 | 15 |
| 100 | 20 |
| 250 | 50 |
| 500 | 100 |
| 1,000 | 200 |
Questions people ask
- How many grams are in a carat?
- One carat equals 0.2 grams.
- How do I convert carats to grams by hand?
- Multiply the number of carats by 0.2. For a rough check, 0.2 is close enough for most everyday use.
- What is 1 carat in grams?
- 1 carat is 0.2 grams.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.