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Carats to grams

1 ct = 0.2 g

⇄
grams (g)0.2

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Formula

Multiply the value in ct by 0.2 to get g.

g = ct × 0.2

Conversion table

carats (ct)grams (g)
0.10.02
0.50.1
10.2
20.4
30.6
40.8
51
61.2
71.4
81.6
91.8
102
153
204
255
306
408
5010
7515
10020
25050
500100
1,000200

Frequently asked questions

How many g are in 1 ct?

1 ct = 0.2 g.

How do I convert ct to g?

Multiply the value in ct by 0.2 to get g. g = ct × 0.2

What is 10 ct in g?

10 ct = 2 g.

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Updated November 9, 2026