A metric carat is exactly 200 milligrams.
Carats to Ronnagrams
Convert carats (ct) to ronnagrams (Rg) instantly. Free online weight converter with formulas, tables and examples.
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Ronnagram is 1e+27 gram units.
Rg = ct × 2e-28
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Formula
Rg = ct × 2e-28
ct = Rg ÷ 2e-28
Conversion table
| 1 ct | 2.000000e-28 Rg |
| 5 ct | 1.000000e-27 Rg |
| 10 ct | 2.000000e-27 Rg |
| 20 ct | 4.000000e-27 Rg |
| 50 ct | 1.000000e-26 Rg |
| 100 ct | 2.000000e-26 Rg |
| 500 ct | 1.000000e-25 Rg |
| 1000 ct | 2.000000e-25 Rg |
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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 ronnagram (Rg). Ronnagram is 1e+27 gram units.
How do I convert carats to ronnagrams?
Multiply the number of carats by 2e-28 to get the equivalent value in ronnagrams. For example, 5 ct × 2e-28 = 1.000000e-27 Rg.
Is the carat to ronnagram conversion exact?
Yes. This converter uses a fixed factor of 2e-28, 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 ronnagram values.
Can I convert ronnagrams back to carats?
Yes. Multiply the ronnagrams value by 5e+27, or divide it by 2e-28, to convert back to carats.
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About this conversion
This page converts carats (ct) into ronnagrams (Rg) using the Universal Converter's mass conversion engine.
Carat-to-Ronnagram conversions are useful for everyday calculations, scientific work, shipping, and any task that mixes different weight or mass units.
The formula is Rg = ct × 2e-28, based on the standard definitions of carat and ronnagram.
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. Ronnagram: Ronnagram is 1e+27 gram units.