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Convert grain (troy) to carat (troy)

Here you can quickly calculate how many carat (troy) fit in one grain (troy).

- scroll: formula · table · questions -

  • 1 gr t = 0.316092 ct t
  • 1 ct t = 3.163633 gr t

Grain (troy) to carat (troy) conversion table

grain (troy) carat (troy)
1 0.316092
2 0.632184
5 1.580461
10 3.160922
20 6.321845
50 15.804612
100 31.609224

Formula to convert grain (troy) to carat (troy)

To convert grain (troy) to carat (troy), multiply by 0.316092.

1 gr t = 0.316092 ct t
Example: 1 grain (troy) = 0.316092 carat (troy)

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 grain (troy) to/from carat (troy) conversion quiz

Score: 0

22.8 grain (troy) equals 7.93 carat (troy).

Correct answer: 22.8 grain (troy) = 7.21 carat (troy).

24.4 grain (troy) equals 6.56 carat (troy).

Correct answer: 24.4 grain (troy) = 7.71 carat (troy).

237 grain (troy) equals 74.9 carat (troy).

Correct answer: 237 grain (troy) = 74.9 carat (troy).

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