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carats to grams | Exact Decimal + Stone/Pounds

1 Carat = 0.2 Gram

Conversions between Carat (ct) and Gram (g) are essential in the weight & mass category. This tool provides a quick, free, and accurate way to convert carats to grams for academic, professional, or personal calculations. Check the detailed conversion table and formula explanation below for more context.

Weight & Mass Converter

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Formula

g = ct × 0.2

To convert Carat to Gram, use the formula displayed above.

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Carat to Gram: Quick Reference Table

Carat Gram (Decimal) Fraction
0.001 ct 0.0002 g -
0.01 ct 0.002 g -
0.1 ct 0.02 g 1/64 g
0.5 ct 0.1 g 3/32 g
1 ct 0.2 g 13/64 g
2 ct 0.4 g 13/32 g
5 ct 1 g -
10 ct 2 g -
25 ct 5 g -
50 ct 10 g -
100 ct 20 g -
250 ct 50 g -
500 ct 100 g -
1000 ct 200 g -

ct to g Formula and Examples

Direct Formula g = ct × 0.2
Inverse Formula ct = g × 5
Mental Math Shortcut

Divide the value by roughly 5 to quickly estimate the converted result.

Common Carat to Gram Calculations

  • 5 ct = 1 g
  • 10 ct = 2 g
  • 50 ct = 10 g
  • 100 ct = 20 g
  • 500 ct = 100 g

Related Specialist Weight & Mass Calculators & Niche Tools

Standard weight and mass units like kilograms, pounds, grams, and ounces are used globally, but specific industries like culinary baking, metallurgy, and construction logistics demand much more detailed density and structural load conversions.

In culinary arts, baking success relies on converting ingredient weight (grams) from volume (cups, tablespoons) because packing density differs between flour, butter, and white sugar. In heavy fabrication, steel weight calculators estimate raw beam or plate weights based on linear dimensions and metal grades, while rebar calculators determine structural reinforcement loading. For land developers, gravel weight calculators convert volume in cubic yards into tons to estimate hauling weights. Using these specialized weight calculators prevents structural calculation errors and material shipping underestimations.

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How to Convert Carat to Gram

How many grams are in a carat?
1 Carat (ct) is equal to 0.2 Gram (g). To convert carats to grams, multiply your value by 0.2.
How do I convert carat to gram?
To convert Carat to Gram, use the formula: Gram = Carat × 0.2. For example, 5 ct = 1 g.
What is the formula for ct to g?
The formula is: g = ct × 0.2. This is based on the exact SI conversion factor. Use our calculator above to convert any value instantly.