Convert carat to ounce (troy)
Here you can quickly calculate how many ounce (troy) fit in one carat.
Only numbers, with a single decimal separator.
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- scroll: formula · table · questions -
- 1 ct = 0.00643 oz t
- 1 oz t = 155.517384 ct
Example: carat to ounce (troy)
- 1 carat = 0.00643 ounce (troy)
Carat to ounce (troy) conversion table
| carat | ounce (troy) |
|---|---|
| 1 | 0.00643 |
| 2 | 0.01286 |
| 5 | 0.032151 |
| 10 | 0.064301 |
| 20 | 0.128603 |
| 50 | 0.321507 |
| 100 | 0.643015 |
Carat to ounce (troy) formula
To convert carat to ounce (troy), multiply by 0.00643.
1 ct = 0.00643 oz t
Example: 1 carat = 0.00643 ounce (troy)
Common mass conversion mistakes
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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.
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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 and ounce (troy) conversion quiz
Score:
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54 carat equals 0.347 ounce (troy).
Correct answer: 54 carat = 0.347 ounce (troy).
31 carat equals 0.12 ounce (troy).
Correct answer: 31 carat = 0.199 ounce (troy).
10.2 ounce (troy) equals 2 380 carat.
Correct answer: 10.2 ounce (troy) = 1 590 carat.