Carats to Grams (ct to g)
Free online carat to gram converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
WEIGHT AND MASS CONVERTER — INSTANT RESULT
Formula: multiply the carat value by 0.2 — i.e. g = ct × 0.2
Quick check: 1 ct = 0.2 g
Quick check: 1 ct = 0.2 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 |
| 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 |
| 30 ct | 6 g |
| 40 ct | 8 g |
| 50 ct | 10 g |
| 75 ct | 15 g |
| 100 ct | 20 g |
| 250 ct | 50 g |
| 500 ct | 100 g |
| 1,000 ct | 200 g |
How to convert carats to grams
To convert carats to grams, multiply the amount in carats by 0.2. For example, 10 ct = 2 g. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert between metric, avoirdupois, troy and apothecary mass units. The kilogram is the SI base unit of mass; pounds and ounces below follow the international avoirdupois definitions (1 lb = 0.45359237 kg exactly).
Frequently asked questions
How many grams are in one carat?
One carat is exactly 0.2 grams.
How do I convert ct to g?
Multiply the ct value by 0.2 to get g. The converter at the top of this page does this automatically and works in both directions.
How much is 100 carats in grams?
100 carats equals 20 grams.