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Convert carat to carat (troy)

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

- scroll: formula · table · questions -

  • 1 ct = 0.97561 ct t
  • 1 ct t = 1.025 ct

Carat to carat (troy) conversion table

carat carat (troy)
1 0.97561
2 1.95122
5 4.878049
10 9.756098
20 19.512195
50 48.780488
100 97.560976

Formula to convert carat to carat (troy)

To convert carat to carat (troy), multiply by 0.97561.

1 ct = 0.97561 ct t
Example: 1 carat = 0.97561 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 carat to/from carat (troy) conversion quiz

Score: 0

16 carat equals 15.6 carat (troy).

Correct answer: 16 carat = 15.6 carat (troy).

132 carat equals 148 carat (troy).

Correct answer: 132 carat = 129 carat (troy).

24.5 carat equals 23.9 carat (troy).

Correct answer: 24.5 carat = 23.9 carat (troy).

80 carat (troy) equals 82 carat.

Correct answer: 80 carat (troy) = 82 carat.

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