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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

86 pennyweight equals 568 carat.

Correct answer: 86 pennyweight = 669 carat.

92 pennyweight equals 608 carat.

Correct answer: 92 pennyweight = 715 carat.

7.7 carat equals 0.99 pennyweight.

Correct answer: 7.7 carat = 0.99 pennyweight.

17.9 pennyweight equals 139 carat.

Correct answer: 17.9 pennyweight = 139 carat.

100 pennyweight equals 778 carat.

Correct answer: 100 pennyweight = 778 carat.

More mass conversions