A metric carat is exactly 200 milligrams.
Carats to Grams
Convert carats (ct) to grams (g) instantly. Free online weight converter with formulas, tables and examples.
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A gram is one thousandth of a kilogram.
g = ct × 0.2
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Formula
g = ct × 0.2
ct = g ÷ 0.2
Conversion table
| 1 ct | 0.200000 g |
| 5 ct | 1.000000 g |
| 10 ct | 2.000000 g |
| 20 ct | 4.000000 g |
| 50 ct | 10.000000 g |
| 100 ct | 20.000000 g |
| 500 ct | 100.000000 g |
| 1000 ct | 200.000000 g |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the carat (ct). A metric carat is exactly 200 milligrams.
What is the destination unit in this conversion?
The destination unit is the gram (g). A gram is one thousandth of a kilogram.
How do I convert carats to grams?
Multiply the number of carats by 0.2 to get the equivalent value in grams. For example, 5 ct × 0.2 = 1.000000 g.
Is the carat to gram conversion exact?
Yes. This converter uses a fixed factor of 0.2, so results are precise and consistent every time you use it.
Where is this conversion commonly used?
It's used in everyday measurement, shipping and logistics, scientific and industrial work, and any context where you need to switch between carat and gram values.
Can I convert grams back to carats?
Yes. Multiply the grams value by 5, or divide it by 0.2, to convert back to carats.
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About this conversion
This page converts carats (ct) into grams (g) using the Universal Converter's mass conversion engine.
Carat-to-Gram conversions are useful for everyday calculations, scientific work, shipping, and any task that mixes different weight or mass units.
The formula is g = ct × 0.2, based on the standard definitions of carat and gram.
Because the conversion factor is fixed, results stay consistent and repeatable no matter how many times you calculate them.
Carat: A metric carat is exactly 200 milligrams. Gram: A gram is one thousandth of a kilogram.