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Convert carat to pennyweight

Here you can quickly calculate how many pennyweight fit in one carat.
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- scroll: formula · table · questions -

  • 1 ct = 0.128603 dwt
  • 1 dwt = 7.775869 ct

Example: carat to pennyweight

  • 1 carat = 0.128603 pennyweight

Carat to pennyweight conversion table

carat pennyweight
1 0.128603
2 0.257206
5 0.643015
10 1.28603
20 2.57206
50 6.430149
100 12.860299

Carat to pennyweight formula

To convert carat to pennyweight, multiply by 0.128603.

1 ct = 0.128603 dwt
Example: 1 carat = 0.128603 pennyweight

Common mass conversion mistakes

  • 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 pennyweight conversion quiz

Score: 0

2 pennyweight equals 15.6 carat.

Correct answer: 2 pennyweight = 15.6 carat.

22.4 pennyweight equals 157 carat.

Correct answer: 22.4 pennyweight = 174 carat.

91 pennyweight equals 708 carat.

Correct answer: 91 pennyweight = 708 carat.

15.6 pennyweight equals 133 carat.

Correct answer: 15.6 pennyweight = 121 carat.

18.7 pennyweight equals 145 carat.

Correct answer: 18.7 pennyweight = 145 carat.

More mass conversions