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Convert carat (troy) to grain (troy)

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

- scroll: formula · table · questions -

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

Carat (troy) to grain (troy) conversion table

carat (troy) grain (troy)
1 3.163633
2 6.327267
5 15.818167
10 31.636335
20 63.272669
50 158.181673
100 316.363346

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

To convert carat (troy) to grain (troy), multiply by 3.163633.

1 ct t = 3.163633 gr t
Example: 1 carat (troy) = 3.163633 grain (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 carat (troy) to/from grain (troy) conversion quiz

Score: 0

22.1 grain (troy) equals 6.99 carat (troy).

Correct answer: 22.1 grain (troy) = 6.99 carat (troy).

13.5 grain (troy) equals 4.27 carat (troy).

Correct answer: 13.5 grain (troy) = 4.27 carat (troy).

225 carat (troy) equals 819 grain (troy).

Correct answer: 225 carat (troy) = 712 grain (troy).

92 carat (troy) equals 291 grain (troy).

Correct answer: 92 carat (troy) = 291 grain (troy).

5.2 grain (troy) equals 1.64 carat (troy).

Correct answer: 5.2 grain (troy) = 1.64 carat (troy).

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