Grams to carats converter
Carats (ct)
1 gram = 5 carats
How to convert grams to carats
ct = g × 5
Multiply the number of grams by 5 to get carats. Going the other way, divide by 5 (or multiply by 0.2).
One gram is exactly defined as 5 carats (to 12 significant figures), and one carat is 0.2 grams.
Worked examples
- Convert 5 grams: 5 × 5 = 25 25 carats.
- Convert 12.5 grams: 12.5 × 5 = 62.5 62.5 carats.
- Convert 250 grams: 250 × 5 = 1,250 1,250 carats.
Quick-reference table
| 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 |
| 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 |
Related conversions
Frequently asked questions
How many carats are in 1 gram?
1 gram equals 5 carats.
What is the formula to convert grams to carats?
Use ct = g × 5. Multiply the number of grams by 5 to get carats. Going the other way, divide by 5 (or multiply by 0.2).
What is 100 grams in carats?
100 grams is 500 carats.