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.
Carat per Cubic inch to Gram per Cubic Millimeter
Convert carat per cubic inch (ct/in3) to gram per cubic millimeter (g/mm3) instantly with formula, conversion table, and FAQ.
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Convert carat per cubic inch (ct/in3) to gram per cubic millimeter (g/mm3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Gram per Cubic Millimeter (g/mm3) expresses mass in gram per unit volume in cubic millimeter, found by dividing a mass value by a volume value.
g/mm3 = ct/in3 × 1.220475e-5
Results update instantly for Carat per Cubic inch to Gram per Cubic Millimeter conversions.
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Formula
g/mm3 = ct/in3 × 1.220475e-5
ct/in3 = g/mm3 × 81935.32
Conversion table
| 1 ct/in3 | 1.220475e-5 g/mm3 |
| 5 ct/in3 | 6.102374e-5 g/mm3 |
| 10 ct/in3 | 0.000122 g/mm3 |
| 20 ct/in3 | 0.000244 g/mm3 |
| 50 ct/in3 | 0.00061 g/mm3 |
| 100 ct/in3 | 0.00122 g/mm3 |
| 500 ct/in3 | 0.006102 g/mm3 |
| 1000 ct/in3 | 0.012205 g/mm3 |
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How the formula works
Both carat per cubic inch and gram per cubic millimeter measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in carat per cubic inch by 1.220475e-5 to get gram per cubic millimeter. To reverse the conversion, multiply a gram per cubic millimeter value by 81935.32 to get back to carat per cubic inch.
Frequently asked questions
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.
What is Gram per Cubic Millimeter (g/mm3)?
Gram per Cubic Millimeter (g/mm3) expresses mass in gram per unit volume in cubic millimeter, found by dividing a mass value by a volume value.
How do I convert carat per cubic inch to gram per cubic millimeter?
Multiply the carat per cubic inch value by 1.220475e-5 to get the equivalent in gram per cubic millimeter. For example, 5 ct/in3 × 1.220475e-5 = 6.102374e-5 g/mm3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 1.220475e-5 is an exact, non-rounded value.
Can I convert gram per cubic millimeter back to carat per cubic inch?
Yes. Divide the gram per cubic millimeter value by 1.220475e-5, or multiply it by 81935.32, to get carat per cubic inch.
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About converting carat per cubic inch to gram per cubic millimeter
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. Gram per Cubic Millimeter (g/mm3) expresses mass in gram per unit volume in cubic millimeter, found by dividing a mass value by a volume value.
Use this calculator to move between carat per cubic inch and gram per cubic millimeter accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.