Mass per volume density.
Carat per Cubic inches to Carats per Cubic Millimeter Converter — ct/in3 to ct/mm3
Convert Carat per Cubic inch (ct/in3) to Carat per Cubic Millimeter (ct/mm3) using the exact conversion factor (1 carat per cubic inch = 0.0000610237 carat per cubic millimeter). See the formula, worked examples, and conversion table.
Carat per Cubic inches to Carats per Cubic Millimeter converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 12.20474882 / 200000.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carat per Cubic inches to Carats per Cubic Millimeter
Carat per Cubic inch and Carat per Cubic Millimeter both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
carats per cubic millimeter = carat per cubic inches × 0.0000610237440947
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cubic inch equals 12.2047488189 base units, and 1 carat per cubic millimeter equals 200000 base units, so dividing one by the other gives the direct carat per cubic inch-to-carat per cubic millimeter factor of 0.0000610237440947.
Simple example
1 ct/in3 × 0.00006102374409 = 0.0000610237 ct/mm3
1 carat per cubic inch = 0.0000610237 carats per cubic millimeter.
Real-world example
1,000 ct/in3 × 0.00006102374409 = 0.0610237441 ct/mm3
1,000 carat per cubic inches = 0.0610237441 carats per cubic millimeter.
Conversion table
| Carat per Cubic inch (ct/in3) | Carat per Cubic Millimeter (ct/mm3) |
|---|---|
| 0.1 ct/in3 | 0.0000061024 ct/mm3 |
| 1 ct/in3 | 0.0000610237 ct/mm3 |
| 10 ct/in3 | 0.0006102374 ct/mm3 |
| 100 ct/in3 | 0.0061023744 ct/mm3 |
| 1,000 ct/in3 | 0.0610237441 ct/mm3 |
| 10,000 ct/in3 | 0.6102374409 ct/mm3 |
Reverse conversion: Carat per Cubic Millimeter to Carat per Cubic inch
0.0000610237 ct/mm3 × 16387.064 = 0.9999992774 ct/in3
0.0000610237 carats per cubic millimeter = 0.9999992774 carat per cubic inches.
carat per cubic inches = carats per cubic millimeter × 16387.064
For a page dedicated to this direction, see Carat per Cubic Millimeter to Carat per Cubic inch.
Understanding the Carat per Cubic inch (ct/in3)
Mass per volume density.
Understanding the Carat per Cubic Millimeter (ct/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per cubic millimeter are in 1 carat per cubic inch?
1 carat per cubic inch equals 0.0000610237 carats per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic inch to carat per cubic millimeter?
Multiply the carat per cubic inch value by 0.00006102374409. The converter above does this instantly to whatever precision you set.
How do I convert carat per cubic millimeter back to carat per cubic inch?
Use the reverse factor: 1 carat per cubic millimeter equals 16,387.064 carat per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cubic inch?
Carat per Cubic inch (ct/in3) is a unit of density.
What is a carat per cubic millimeter?
Carat per Cubic Millimeter (ct/mm3) is a unit of density.
Is the carat per cubic inch to carat per cubic millimeter conversion exact?
Yes. Both carat per cubic inch and carat per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.00006102374409 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.