Carat per Cubic Millimeter (ct/mm3) expresses mass in carat per unit volume in cubic millimeter, found by dividing a mass value by a volume value.
Carat per Cubic Millimeter to Carat per Cubic inch
Convert carat per cubic millimeter (ct/mm3) to carat per cubic inch (ct/in3) instantly with formula, conversion table, and FAQ.
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Convert carat per cubic millimeter (ct/mm3) to carat per cubic inch (ct/in3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value.
ct/in3 = ct/mm3 × 16387.064
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Formula
ct/in3 = ct/mm3 × 16387.064
ct/mm3 = ct/in3 × 6.102374e-5
Conversion table
| 1 ct/mm3 | 16387.064 ct/in3 |
| 5 ct/mm3 | 81935.32 ct/in3 |
| 10 ct/mm3 | 163870.64 ct/in3 |
| 20 ct/mm3 | 327741.28 ct/in3 |
| 50 ct/mm3 | 819353.2 ct/in3 |
| 100 ct/mm3 | 1.638706e6 ct/in3 |
| 500 ct/mm3 | 8.193532e6 ct/in3 |
| 1000 ct/mm3 | 1.638706e7 ct/in3 |
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How the formula works
Both carat per cubic millimeter and carat per cubic inch measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in carat per cubic millimeter by 16387.064 to get carat per cubic inch. To reverse the conversion, multiply a carat per cubic inch value by 6.102374e-5 to get back to carat per cubic millimeter.
Frequently asked questions
What is Carat per Cubic Millimeter (ct/mm3)?
Carat per Cubic Millimeter (ct/mm3) expresses mass in carat per unit volume in cubic millimeter, found by dividing a mass value by a volume value.
What is Carat per Cubic inch (ct/in3)?
Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value.
How do I convert carat per cubic millimeter to carat per cubic inch?
Multiply the carat per cubic millimeter value by 16387.064 to get the equivalent in carat per cubic inch. For example, 5 ct/mm3 × 16387.064 = 81935.32 ct/in3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 16387.064 is an exact, non-rounded value.
Can I convert carat per cubic inch back to carat per cubic millimeter?
Yes. Divide the carat per cubic inch value by 16387.064, or multiply it by 6.102374e-5, to get carat per cubic millimeter.
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About converting carat per cubic millimeter to carat per cubic inch
Carat per Cubic Millimeter (ct/mm3) expresses mass in carat per unit volume in cubic millimeter, found by dividing a mass value by a volume value. Carat per Cubic inch (ct/in3) expresses mass in carat per unit volume in cubic inch, found by dividing a mass value by a volume value.
Use this calculator to move between carat per cubic millimeter and carat per cubic inch accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.