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Carats to Grams Converter

1 carat = 0.2 grams. To convert ct to g, multiply by 0.2, or divide by 5.

⇄

100 ct = 20 g

1 ct
0.2 g
1 g
5 ct
10 ct
2 g
100 ct
20 g

How to convert Carats to Grams

1 carat equals 0.2 grams, so the conversion is a single multiplication.

g = ct × 0.2

Example: 150 ct × 0.2 = 30 g.

About the gram

Gram (g)

One gram is a thousandth of a kilogram. It's the standard unit on nutrition labels and kitchen scales outside the US.

1 carat in every weight unit

Pounds0.0004409 lb
Kilograms0.0002 kg
Grams0.2 g
Ounces0.007055 oz
Stone0.00003149 st
Milligrams200 mg
Metric Tons2e-7 t
Short Tons (US)2.205e-7 ton
Long Tons (UK)1.968e-7 LT
Grains3.086 gr
Troy Ounces0.00643 oz t
Troy Pounds0.0005358 lb t
Pennyweights0.1286 dwt
Micrograms200,000 µg
Slugs0.0000137 slug
Hundredweight (US)0.000004409 US cwt
Hundredweight (UK)0.000003937 UK cwt

Quick answers

Carats to Grams FAQ

How many grams are in a carat?

1 carat = 0.2 grams.

How many carats are in a gram?

1 gram = 5 carats.

How do I convert ct to g?

Use g = ct × 0.2. For example, 10 ct = 2 g.

Can I print this Carats to Grams chart?

Yes. Use "Print / Save PDF" next to the converter for a one-page chart, or "Download CSV" to open it in Excel or Google Sheets.