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Convert ounce to carat

Here you can quickly calculate how many carat fit in one ounce.
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  • 1 oz = 141.747616 ct
  • 1 ct = 0.007055 oz

Example: ounce to carat

  • 1 ounce = 141.747616 carat

Ounce to carat conversion table

ounce carat
1 141.747616
2 283.495231
5 708.738078
10 1417.476156
20 2834.952313
50 7087.380781
100 14174.761563

Ounce to carat formula

To convert ounce to carat, multiply by 141.747616.

1 oz = 141.747616 ct
Example: 1 ounce = 141.747616 carat

Common mass conversion mistakes

  • 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.

Quick ounce and carat conversion quiz

Score: 0

128 carat equals 1.81 ounce.

Correct answer: 128 carat = 0.903 ounce.

19.6 ounce equals 2 780 carat.

Correct answer: 19.6 ounce = 2 780 carat.

5.4 ounce equals 1 150 carat.

Correct answer: 5.4 ounce = 765 carat.

6 ounce equals 425 carat.

Correct answer: 6 ounce = 850 carat.

More mass conversions