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Convert carat to gram

Here you can quickly calculate how many gram fit in one carat.

- scroll: formula · table · questions -

  • 1 ct = 0.2 g
  • 1 g = 5 ct

Carat to gram conversion table

carat gram
1 0.2
2 0.4
5 1
10 2
20 4
50 10
100 20

Formula to convert carat to gram

To convert carat to gram, multiply by 0.2.

1 ct = 0.2 g
Example: 1 carat = 0.2 gram

Common mistakes in mass conversion

  • The carat used for gemstones is a unit of mass: exactly 0.2 g, so a 5-carat diamond weighs 1 gram. The karat used for gold is something else entirely, a purity scale where 24k is pure gold and 18k is 75% gold. The two cannot be converted into each other.

Quick carat to/from gram conversion quiz

Score: 0

24.1 gram equals 108 carat.

Correct answer: 24.1 gram = 121 carat.

42 gram equals 189 carat.

Correct answer: 42 gram = 210 carat.

14.9 gram equals 63.3 carat.

Correct answer: 14.9 gram = 74.5 carat.

5.1 gram equals 25.5 carat.

Correct answer: 5.1 gram = 25.5 carat.

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