⚖️ Carats to Decigrams Converter

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1 carat =
2 decigrams
1 decigram =
0.5 carats
Formula
dg = ct × 2
Handy values
5 ct = 10 dg · 10 ct = 20 dg · 100 ct = 200 dg

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⚡ Carats to Decigrams: the quick answer

1 ct = 2 dg 1 carat equals 2 decigrams

To convert carats to decigrams, multiply the value by 2. To go the other way, multiply decigrams by 0.5 to get carats.

↔ Convert decigrams to carats instead

🧮 Formula

Carats to Decigrams
dg = ct × 2
Decigrams to Carats
ct = dg × 0.5

Where

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

📊 Carats to Decigrams conversion table

Carats (ct)Decigrams (dg)
1 ct2 dg
2 ct4 dg
3 ct6 dg
4 ct8 dg
5 ct10 dg
6 ct12 dg
7 ct14 dg
8 ct16 dg
9 ct18 dg
10 ct20 dg
12 ct24 dg
14 ct28 dg
15 ct30 dg
20 ct40 dg
21 ct42 dg
24 ct48 dg
25 ct50 dg
30 ct60 dg
40 ct80 dg
50 ct100 dg
60 ct120 dg
75 ct150 dg
80 ct160 dg
100 ct200 dg
200 ct400 dg
250 ct500 dg
300 ct600 dg
400 ct800 dg
500 ct1,000 dg
750 ct1,500 dg
1,000 ct2,000 dg

📘 About these units

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

Decigram (dg). A decigram is one tenth of a gram.

❓ Frequently asked questions

How many decigrams are in one carat?

There are 2 decigrams in one carat.

How do I convert carats to decigrams?

Multiply the number of carats by 2. For example, 10 carats equal 20 decigrams.

How many carats are in one decigram?

One decigram equals 0.5 carats.

How many decigrams is 12 carats?

24 decigrams. Other common values: 5 carats = 10 decigrams and 100 carats = 200 decigrams.

What people are saying
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Anonymous · 22 Oct 2026