A metric carat is exactly 200 milligrams.
Carats to Zettagrams
Convert carats (ct) to zettagrams (Zg) instantly. Free online weight converter with formulas, tables and examples.
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Zettagram is 1e+21 gram units.
Zg = ct × 2e-22
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Formula
Zg = ct × 2e-22
ct = Zg ÷ 2e-22
Conversion table
| 1 ct | 2.000000e-22 Zg |
| 5 ct | 1.000000e-21 Zg |
| 10 ct | 2.000000e-21 Zg |
| 20 ct | 4.000000e-21 Zg |
| 50 ct | 1.000000e-20 Zg |
| 100 ct | 2.000000e-20 Zg |
| 500 ct | 1.000000e-19 Zg |
| 1000 ct | 2.000000e-19 Zg |
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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 zettagram (Zg). Zettagram is 1e+21 gram units.
How do I convert carats to zettagrams?
Multiply the number of carats by 2e-22 to get the equivalent value in zettagrams. For example, 5 ct × 2e-22 = 1.000000e-21 Zg.
Is the carat to zettagram conversion exact?
Yes. This converter uses a fixed factor of 2e-22, 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 zettagram values.
Can I convert zettagrams back to carats?
Yes. Multiply the zettagrams value by 5e+21, or divide it by 2e-22, to convert back to carats.
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About this conversion
This page converts carats (ct) into zettagrams (Zg) using the Universal Converter's mass conversion engine.
Carat-to-Zettagram conversions are useful for everyday calculations, scientific work, shipping, and any task that mixes different weight or mass units.
The formula is Zg = ct × 2e-22, based on the standard definitions of carat and zettagram.
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. Zettagram: Zettagram is 1e+21 gram units.