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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

Grain (troy) to carat (troy) formula

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 mass conversion mistakes

  • 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) and carat (troy) conversion quiz

Score: 0

6.6 carat (troy) equals 20.9 grain (troy).

Correct answer: 6.6 carat (troy) = 20.9 grain (troy).

16.1 grain (troy) equals 5.85 carat (troy).

Correct answer: 16.1 grain (troy) = 5.09 carat (troy).

86 grain (troy) equals 27.2 carat (troy).

Correct answer: 86 grain (troy) = 27.2 carat (troy).

9 carat (troy) equals 24.2 grain (troy).

Correct answer: 9 carat (troy) = 28.5 grain (troy).

173 carat (troy) equals 547 grain (troy).

Correct answer: 173 carat (troy) = 547 grain (troy).

More mass conversions