Convert carat to grain

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

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Conversion from carat to grain example

Starting value Increment Accuracy

To convert carat to grain, multiply by 3.086472.

1 ct = 3.086472 gr

Example: 1 carat = 3.086472 grain

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.

Score: 0

104 carat equals 321 grain.

Correct answer: 104 carat = 321 grain.

49 carat equals 151 grain.

Correct answer: 49 carat = 151 grain.

13.1 carat equals 40.4 grain.

Correct answer: 13.1 carat = 40.4 grain.