A metric carat is exactly 200 milligrams.
Carats to Atomic mass units
Convert carats (ct) to atomic mass units (u) instantly. Free online weight converter with formulas, tables and examples.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Context values
Some unit families need one extra value for a physically accurate result.
The unified atomic mass unit is used in atomic physics.
u = ct × 1.20442815242e+23
Results update instantly for Carats to Atomic mass units conversions.
Reserved above the conversion cards and below the converter.
Formula
u = ct × 1.20442815242e+23
ct = u ÷ 1.20442815242e+23
Conversion table
| 1 ct | 1.204428e+23 u |
| 5 ct | 6.022141e+23 u |
| 10 ct | 1.204428e+24 u |
| 20 ct | 2.408856e+24 u |
| 50 ct | 6.022141e+24 u |
| 100 ct | 1.204428e+25 u |
| 500 ct | 6.022141e+25 u |
| 1000 ct | 1.204428e+26 u |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
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 atomic mass unit (u). The unified atomic mass unit is used in atomic physics.
How do I convert carats to atomic mass units?
Multiply the number of carats by 1.20442815242e+23 to get the equivalent value in atomic mass units. For example, 5 ct × 1.20442815242e+23 = 6.022141e+23 u.
Is the carat to atomic mass unit conversion exact?
Yes. This converter uses a fixed factor of 1.20442815242e+23, 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 atomic mass unit values.
Can I convert atomic mass units back to carats?
Yes. Multiply the atomic mass units value by 8.302695333e-24, or divide it by 1.20442815242e+23, to convert back to carats.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts carats (ct) into atomic mass units (u) using the Universal Converter's mass conversion engine.
Carat-to-Atomic mass unit conversions are useful for everyday calculations, scientific work, shipping, and any task that mixes different weight or mass units.
The formula is u = ct × 1.20442815242e+23, based on the standard definitions of carat and atomic mass unit.
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. Atomic mass unit: The unified atomic mass unit is used in atomic physics.