Convert grams to carats and carats to grams instantly. Bidirectional weight converter with formula for gemstones.
Multiply the gram value by 5. The metric carat was standardized in 1907 at exactly 200 milligrams (0.2 grams), making the conversion straightforward.
| Grams | Carats |
|---|---|
| 0.2 | 1.0 |
| 0.5 | 2.5 |
| 1.0 | 5.0 |
| 2.0 | 10.0 |
| 3.5 | 17.5 |
| 5.0 | 25.0 |
| 20.0 | 100.0 |
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There are exactly 5 carats in one gram. One carat equals 0.2 grams or 200 milligrams.
The carat (ct) is a unit of mass used for measuring gemstones and pearls. It equals exactly 200 milligrams (0.2 grams), standardized internationally since 1907.
No. A carat (ct) measures gemstone weight, while a karat (kt) measures gold purity. 24-karat gold is pure gold; a 1-carat diamond weighs 0.2 grams.
Multiply the gram value by 5. For example, 3.5 g = 17.5 carats.