Mass per volume density.
Dram per Cubic inches to Kilograms per Cubic Millimeter Converter — dr/in3 to kg/mm3
Convert Dram per Cubic inch (dr/in3) to Kilogram per Cubic Millimeter (kg/mm3) using the exact conversion factor (1 dram per cubic inch = 1.081246e-7 kilogram per cubic millimeter). See the formula, worked examples, and conversion table.
Dram per Cubic inches to Kilograms 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 108.1246278 / 1e+9.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Dram per Cubic inches to Kilograms per Cubic Millimeter
Dram per Cubic inch and Kilogram 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
kilograms per cubic millimeter = dram per cubic inches × 1.081246e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cubic inch equals 108.124627774 base units, and 1 kilogram per cubic millimeter equals 1000000000 base units, so dividing one by the other gives the direct dram per cubic inch-to-kilogram per cubic millimeter factor of 1.081246e-7.
Simple example
1 dr/in3 × 1.081246e-7 = 1.081246e-7 kg/mm3
1 dram per cubic inch = 1.081246e-7 kilograms per cubic millimeter.
Real-world example
1,000 dr/in3 × 1.081246e-7 = 0.0001081246 kg/mm3
1,000 dram per cubic inches = 0.0001081246 kilograms per cubic millimeter.
Conversion table
| Dram per Cubic inch (dr/in3) | Kilogram per Cubic Millimeter (kg/mm3) |
|---|---|
| 0.1 dr/in3 | 1.081246e-8 kg/mm3 |
| 1 dr/in3 | 1.081246e-7 kg/mm3 |
| 10 dr/in3 | 0.0000010812 kg/mm3 |
| 100 dr/in3 | 0.0000108125 kg/mm3 |
| 1,000 dr/in3 | 0.0001081246 kg/mm3 |
| 10,000 dr/in3 | 0.0010812463 kg/mm3 |
Reverse conversion: Kilogram per Cubic Millimeter to Dram per Cubic inch
1.081246e-7 kg/mm3 × 9248586.752 = 0.9999997431 dr/in3
1.081246e-7 kilograms per cubic millimeter = 0.9999997431 dram per cubic inches.
dram per cubic inches = kilograms per cubic millimeter × 9248586.75202
For a page dedicated to this direction, see Kilogram per Cubic Millimeter to Dram per Cubic inch.
Understanding the Dram per Cubic inch (dr/in3)
Mass per volume density.
Understanding the Kilogram per Cubic Millimeter (kg/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cubic millimeter are in 1 dram per cubic inch?
1 dram per cubic inch equals 1.081246e-7 kilograms per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cubic inch to kilogram per cubic millimeter?
Multiply the dram per cubic inch value by 1.081246e-7. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic millimeter back to dram per cubic inch?
Use the reverse factor: 1 kilogram per cubic millimeter equals 9,248,586.752 dram per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cubic inch?
Dram per Cubic inch (dr/in3) is a unit of density.
What is a kilogram per cubic millimeter?
Kilogram per Cubic Millimeter (kg/mm3) is a unit of density.
Is the dram per cubic inch to kilogram per cubic millimeter conversion exact?
Yes. Both dram per cubic inch and kilogram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 1.081246e-7 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.