Grams to Carats Converter

g → ct: type a value and the result appears instantly.

1 g = 5 ct
1 ct = 0.2 g

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To

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How to convert grams to carats

Use this formula:

ct = g × 5

Examples

5 g = 25 ct
12 g = 60 ct
100 g = 500 ct

g to ct conversion chart

grams (g)	carats (ct)
0.1 g	0.5 ct
0.25 g	1.25 ct
0.5 g	2.5 ct
1 g	5 ct
2 g	10 ct
3 g	15 ct
4 g	20 ct
5 g	25 ct
6 g	30 ct
7 g	35 ct
8 g	40 ct
9 g	45 ct
10 g	50 ct
12 g	60 ct
15 g	75 ct
20 g	100 ct
25 g	125 ct
30 g	150 ct
40 g	200 ct
50 g	250 ct
60 g	300 ct
70 g	350 ct
75 g	375 ct
80 g	400 ct
90 g	450 ct
100 g	500 ct
150 g	750 ct
200 g	1,000 ct
250 g	1,250 ct
500 g	2,500 ct
1,000 g	5,000 ct

About the units

Gram (g) is a metric (SI) unit. 1 g = 0.001 kg.

Carat (ct) is a commonly used unit. 1 ct = 200 mg.

Frequently asked questions

How do I convert grams to carats?: Multiply the value in g by 5.
How many carats are in 1 gram?: 1 g = 5 ct.
What is 12 g in ct?: 12 g = 60 ct.
How do I convert carats to grams?: Use the reverse converter: ct → g.

Weight Converter →

Related conversions

ct → g kg → lb lb → kg g → oz oz → g oz t → g g → oz t gr → g g → gr gr → mg mg → gr dwt → g g → dwt LT → kg

Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters