Mass per volume density.
Carat per Cubic inches to Milligrams per Cubic Millimeter Converter — ct/in3 to mg/mm3
Convert Carat per Cubic inch (ct/in3) to Milligram per Cubic Millimeter (mg/mm3) using the exact conversion factor (1 carat per cubic inch = 0.0122047488 milligram per cubic millimeter). See the formula, worked examples, and conversion table.
Carat per Cubic inches to Milligrams 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 / 1000.
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 Milligrams per Cubic Millimeter
Carat per Cubic inch and Milligram 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
milligrams per cubic millimeter = carat per cubic inches × 0.0122047488189
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 milligram per cubic millimeter equals 1000 base units, so dividing one by the other gives the direct carat per cubic inch-to-milligram per cubic millimeter factor of 0.0122047488189.
Simple example
1 ct/in3 × 0.01220474882 = 0.0122047488 mg/mm3
1 carat per cubic inch = 0.0122047488 milligrams per cubic millimeter.
Real-world example
1,000 ct/in3 × 0.01220474882 = 12.20474882 mg/mm3
1,000 carat per cubic inches = 12.20474882 milligrams per cubic millimeter.
Conversion table
| Carat per Cubic inch (ct/in3) | Milligram per Cubic Millimeter (mg/mm3) |
|---|---|
| 0.1 ct/in3 | 0.0012204749 mg/mm3 |
| 1 ct/in3 | 0.0122047488 mg/mm3 |
| 10 ct/in3 | 0.1220474882 mg/mm3 |
| 100 ct/in3 | 1.220474882 mg/mm3 |
| 1,000 ct/in3 | 12.20474882 mg/mm3 |
| 10,000 ct/in3 | 122.0474882 mg/mm3 |
Reverse conversion: Milligram per Cubic Millimeter to Carat per Cubic inch
0.0122047488 mg/mm3 × 81.93532 = 0.9999999984 ct/in3
0.0122047488 milligrams per cubic millimeter = 0.9999999984 carat per cubic inches.
carat per cubic inches = milligrams per cubic millimeter × 81.93532
For a page dedicated to this direction, see Milligram per Cubic Millimeter to Carat per Cubic inch.
Understanding the Carat per Cubic inch (ct/in3)
Mass per volume density.
Understanding the Milligram per Cubic Millimeter (mg/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per cubic millimeter are in 1 carat per cubic inch?
1 carat per cubic inch equals 0.0122047488 milligrams per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic inch to milligram per cubic millimeter?
Multiply the carat per cubic inch value by 0.01220474882. The converter above does this instantly to whatever precision you set.
How do I convert milligram per cubic millimeter back to carat per cubic inch?
Use the reverse factor: 1 milligram per cubic millimeter equals 81.93532 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 milligram per cubic millimeter?
Milligram per Cubic Millimeter (mg/mm3) is a unit of density.
Is the carat per cubic inch to milligram per cubic millimeter conversion exact?
Yes. Both carat per cubic inch and milligram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.01220474882 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.