⚖️ Pennyweights to Carats Converter

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1 pennyweight =
7.77587 carats
1 carat =
0.128603 pennyweights
Formula
ct = dwt × 7.77587
Handy values
5 dwt = 38.8793 ct · 10 dwt = 77.7587 ct · 100 dwt = 777.587 ct

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⚡ Pennyweights to Carats: the quick answer

1 dwt = 7.77587 ct 1 pennyweight equals 7.77587 carats

To convert pennyweights to carats, multiply the value by 7.77587. To go the other way, multiply carats by 0.128603 to get pennyweights.

↔ Convert carats to pennyweights instead

🧮 Formula

Pennyweights to Carats
ct = dwt × 7.77587
Carats to Pennyweights
dwt = ct × 0.128603

Where

  • dwt = the weight in pennyweights
  • ct = the weight in carats
Every unit here is defined by its weight in kilograms, so the conversion factor is (kilograms per pennyweight) ÷ (kilograms per carat).

📊 Pennyweights to Carats conversion table

Pennyweights (dwt)Carats (ct)
1 dwt7.77587 ct
2 dwt15.5517 ct
3 dwt23.3276 ct
4 dwt31.1035 ct
5 dwt38.8793 ct
6 dwt46.6552 ct
7 dwt54.4311 ct
8 dwt62.207 ct
9 dwt69.9828 ct
10 dwt77.7587 ct
12 dwt93.3104 ct
14 dwt108.862 ct
15 dwt116.638 ct
20 dwt155.517 ct
21 dwt163.293 ct
24 dwt186.621 ct
25 dwt194.397 ct
30 dwt233.276 ct
40 dwt311.035 ct
50 dwt388.793 ct
60 dwt466.552 ct
75 dwt583.19 ct
80 dwt622.07 ct
100 dwt777.587 ct
200 dwt1,555.17 ct
250 dwt1,943.97 ct
300 dwt2,332.76 ct
400 dwt3,110.35 ct
500 dwt3,887.93 ct
750 dwt5,831.9 ct
1,000 dwt7,775.87 ct

📘 About these units

Pennyweight (dwt). A pennyweight is 1/20 of a troy ounce (1.555 g), used by jewellers.

Carat (ct). The metric carat is 200 milligrams, the unit for diamonds and gemstones.

❓ Frequently asked questions

How many carats are in one pennyweight?

There are 7.77587 carats in one pennyweight.

How do I convert pennyweights to carats?

Multiply the number of pennyweights by 7.77587. For example, 10 pennyweights equal 77.7587 carats.

How many pennyweights are in one carat?

One carat equals 0.128603 pennyweights.

How many carats is 12 pennyweights?

93.3104 carats. Other common values: 5 pennyweights = 38.8793 carats and 100 pennyweights = 777.587 carats.

What people are saying
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Anonymous · 22 Oct 2026