Convert koku to carat

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

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Example: koku to carat

Starting value Increment Accuracy

To convert koku to carat, multiply by 901950.

1 koku = 901950 ct

Example: 1 koku = 901950 carat

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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2 carat equals 2.22 × 10⁻⁶ koku.

Correct answer: 2 carat = 2.22 × 10⁻⁶ koku.

2 koku equals 1 800 000 carat.

Correct answer: 2 koku = 1 800 000 carat.

50 carat equals 5.54 × 10⁻⁵ koku.

Correct answer: 50 carat = 5.54 × 10⁻⁵ koku.