# Carats to Pennyweights

Bookmark Page Pennyweights to Carats (Swap Units)

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Show formula

## Convert Carats to Pennyweights

dwt =
ct * 0.12860

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## Carats

Abbreviated "ct." and spelled with a "c" is a measure of weight used for gemstones. One carat is equal to 1/5 of a gram (200 milligrams). Stones are measured to the nearest hundredth of a carat. A hundreth of a carat is also called a point. Thus a .10 carat stone can be called either 10 points, or 1/10 of a carat. Small stones like .05, and .10ct are most often referred to by point designations. Note that karat with a "K" is a measure of the purity of a gold alloy. A one carat round diamond of average proportions is approximately 6.5mm in diameter. Note that this relationship of weight and size is different for each family of stones. For example ruby and sapphire are both heavier than diamond (technically, they have a higher specific gravity, so a 1 carat ruby or sapphire is smaller in size than a on carat diamond. See Weights and Measures of Gold, Silver and Precious Gems for more information.

dwt =
ct * 0.12860

## Pennyweights

A measure of Troy weight equalling 24 grains or the twentieth part of a Troy ounce (there are 12 ounces in a pound Troy). Pennyweight is usually abbreviated dwt.

Carats to Pennyweights table
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Increments
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< Smaller Values Larger Values >
Carats Pennyweights
0ct 0.00dwt
1ct 0.13dwt
2ct 0.26dwt
3ct 0.39dwt
4ct 0.51dwt
5ct 0.64dwt
6ct 0.77dwt
7ct 0.90dwt
8ct 1.03dwt
9ct 1.16dwt
10ct 1.29dwt
11ct 1.41dwt
12ct 1.54dwt
13ct 1.67dwt
14ct 1.80dwt
15ct 1.93dwt
16ct 2.06dwt
17ct 2.19dwt
18ct 2.31dwt
19ct 2.44dwt
Carats Pennyweights
20ct 2.57dwt
21ct 2.70dwt
22ct 2.83dwt
23ct 2.96dwt
24ct 3.09dwt
25ct 3.22dwt
26ct 3.34dwt
27ct 3.47dwt
28ct 3.60dwt
29ct 3.73dwt
30ct 3.86dwt
31ct 3.99dwt
32ct 4.12dwt
33ct 4.24dwt
34ct 4.37dwt
35ct 4.50dwt
36ct 4.63dwt
37ct 4.76dwt
38ct 4.89dwt
39ct 5.02dwt
Carats Pennyweights
40ct 5.14dwt
41ct 5.27dwt
42ct 5.40dwt
43ct 5.53dwt
44ct 5.66dwt
45ct 5.79dwt
46ct 5.92dwt
47ct 6.04dwt
48ct 6.17dwt
49ct 6.30dwt
50ct 6.43dwt
51ct 6.56dwt
52ct 6.69dwt
53ct 6.82dwt
54ct 6.94dwt
55ct 7.07dwt
56ct 7.20dwt
57ct 7.33dwt
58ct 7.46dwt
59ct 7.59dwt