Convert carat to ounce (troy)

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

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Example: carat to ounce (troy)

Starting value Increment Accuracy

To convert carat to ounce (troy), multiply by 0.00643.

1 ct = 0.00643 oz t

Example: 1 carat = 0.00643 ounce (troy)

The everyday avoirdupois ounce is about 28.35 g, but precious metals are priced in troy ounces of about 31.10 g. An 'ounce of gold' is nearly 10% heavier than an ounce of flour. Use troy ounces for gold and silver, the regular ounce for everything else.
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

15 carat equals 0.145 ounce (troy).

Correct answer: 15 carat = 0.0965 ounce (troy).

67 ounce (troy) equals 1.04e+4 carat.

Correct answer: 67 ounce (troy) = 1.04e+4 carat.

18.4 carat equals 0.118 ounce (troy).

Correct answer: 18.4 carat = 0.118 ounce (troy).

7.8 ounce (troy) equals 1.21e+3 carat.

Correct answer: 7.8 ounce (troy) = 1.21e+3 carat.

11.1 carat equals 0.0357 ounce (troy).

Correct answer: 11.1 carat = 0.0714 ounce (troy).