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Convert grain to carat (troy)

Here you can quickly calculate how many carat (troy) fit in one grain.
write a number and we convert instantly
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- scroll: formula · table · questions -

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

Example: grain to carat (troy)

  • 1 grain = 0.316092 carat (troy)

Grain to carat (troy) conversion table

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

Grain to carat (troy) formula

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

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

Score: 0

4.8 carat (troy) equals 16.7 grain.

Correct answer: 4.8 carat (troy) = 15.2 grain.

2.7 carat (troy) equals 7.26 grain.

Correct answer: 2.7 carat (troy) = 8.54 grain.

15.5 grain equals 4.9 carat (troy).

Correct answer: 15.5 grain = 4.9 carat (troy).

More mass conversions