Skip to content

Convert carat to pennyweight

Here you can quickly calculate how many pennyweight fit in one carat.

- scroll: formula · table · questions -

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

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

Formula to convert carat to pennyweight

To convert carat to pennyweight, multiply by 0.128603.

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

Common mistakes in mass conversion

  • 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 to/from pennyweight conversion quiz

Score: 0

193 carat equals 21.1 pennyweight.

Correct answer: 193 carat = 24.8 pennyweight.

200 pennyweight equals 1.79e+3 carat.

Correct answer: 200 pennyweight = 1.56e+3 carat.

12.6 pennyweight equals 88.2 carat.

Correct answer: 12.6 pennyweight = 98 carat.

19.3 pennyweight equals 150 carat.

Correct answer: 19.3 pennyweight = 150 carat.

133 pennyweight equals 1.03e+3 carat.

Correct answer: 133 pennyweight = 1.03e+3 carat.

More conversions in mass