Mass per volume density.
Carat per Cubic inches to Drams per Cubic Millimeter Converter — ct/in3 to dr/mm3
Convert Carat per Cubic inch (ct/in3) to Dram per Cubic Millimeter (dr/mm3) using the exact conversion factor (1 carat per cubic inch = 0.0000068882 dram per cubic millimeter). See the formula, worked examples, and conversion table.
Carat per Cubic inches to Drams 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 / 1.7718452e+6.
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 Drams per Cubic Millimeter
Carat per Cubic inch and Dram 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
drams per cubic millimeter = carat per cubic inches × 0.0000068881575271
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 dram per cubic millimeter equals 1771845.19531 base units, so dividing one by the other gives the direct carat per cubic inch-to-dram per cubic millimeter factor of 0.0000068881575271.
Simple example
1 ct/in3 × 0.000006888157527 = 0.0000068882 dr/mm3
1 carat per cubic inch = 0.0000068882 drams per cubic millimeter.
Real-world example
1,000 ct/in3 × 0.000006888157527 = 0.0068881575 dr/mm3
1,000 carat per cubic inches = 0.0068881575 drams per cubic millimeter.
Conversion table
| Carat per Cubic inch (ct/in3) | Dram per Cubic Millimeter (dr/mm3) |
|---|---|
| 0.1 ct/in3 | 6.888158e-7 dr/mm3 |
| 1 ct/in3 | 0.0000068882 dr/mm3 |
| 10 ct/in3 | 0.0000688816 dr/mm3 |
| 100 ct/in3 | 0.0006888158 dr/mm3 |
| 1,000 ct/in3 | 0.0068881575 dr/mm3 |
| 10,000 ct/in3 | 0.0688815753 dr/mm3 |
Reverse conversion: Dram per Cubic Millimeter to Carat per Cubic inch
0.0000068882 dr/mm3 × 145176.7031 = 1.000006166 ct/in3
0.0000068882 drams per cubic millimeter = 1.000006166 carat per cubic inches.
carat per cubic inches = drams per cubic millimeter × 145176.703068
For a page dedicated to this direction, see Dram per Cubic Millimeter to Carat per Cubic inch.
Understanding the Carat per Cubic inch (ct/in3)
Mass per volume density.
Understanding the Dram per Cubic Millimeter (dr/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per cubic millimeter are in 1 carat per cubic inch?
1 carat per cubic inch equals 0.0000068882 drams per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic inch to dram per cubic millimeter?
Multiply the carat per cubic inch value by 0.000006888157527. The converter above does this instantly to whatever precision you set.
How do I convert dram per cubic millimeter back to carat per cubic inch?
Use the reverse factor: 1 dram per cubic millimeter equals 145,176.7031 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 dram per cubic millimeter?
Dram per Cubic Millimeter (dr/mm3) is a unit of density.
Is the carat per cubic inch to dram per cubic millimeter conversion exact?
Yes. Both carat per cubic inch and dram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.000006888157527 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.