Convert carat to koku

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

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Example: carat to koku

Starting value Increment Accuracy

To convert carat to koku, divide by 901950.

1 ct = 0.000001 koku

Example: 1 carat = 0.000001 koku

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.

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5 carat equals 5.54 × 10⁻⁶ koku.

Correct answer: 5 carat = 5.54 × 10⁻⁶ koku.

20 carat equals 2.22 × 10⁻⁵ koku.

Correct answer: 20 carat = 2.22 × 10⁻⁵ koku.

5 carat equals 1.11 × 10⁻⁶ koku.

Correct answer: 5 carat = 5.54 × 10⁻⁶ koku.

50 koku equals 4.51 × 10⁷ carat.

Correct answer: 50 koku = 4.51 × 10⁷ carat.