Mass per volume density.
Grams per Cubic Millimeter to Kilogram per Cubic inches Converter — g/mm3 to kg/in3
Convert Gram per Cubic Millimeter (g/mm3) to Kilogram per Cubic inch (kg/in3) using the exact conversion factor (1 gram per cubic millimeter = 16.387064 kilogram per cubic inch). See the formula, worked examples, and conversion table.
Grams per Cubic Millimeter to Kilogram per Cubic inches 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 1e+6 / 61023.74409.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cubic Millimeter to Kilogram per Cubic inches
Gram per Cubic Millimeter and Kilogram per Cubic inch 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
kilogram per cubic inches = grams per cubic millimeter × 16.387064
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cubic millimeter equals 1000000 base units, and 1 kilogram per cubic inch equals 61023.7440947 base units, so dividing one by the other gives the direct gram per cubic millimeter-to-kilogram per cubic inch factor of 16.387064.
Simple example
1 g/mm3 × 16.387064 = 16.387064 kg/in3
1 gram per cubic millimeter = 16.387064 kilogram per cubic inches.
Real-world example
1,000 g/mm3 × 16.387064 = 16,387.064 kg/in3
1,000 grams per cubic millimeter = 16,387.064 kilogram per cubic inches.
Conversion table
| Gram per Cubic Millimeter (g/mm3) | Kilogram per Cubic inch (kg/in3) |
|---|---|
| 0.1 g/mm3 | 1.6387064 kg/in3 |
| 1 g/mm3 | 16.387064 kg/in3 |
| 10 g/mm3 | 163.87064 kg/in3 |
| 100 g/mm3 | 1,638.7064 kg/in3 |
| 1,000 g/mm3 | 16,387.064 kg/in3 |
| 10,000 g/mm3 | 163,870.64 kg/in3 |
Reverse conversion: Kilogram per Cubic inch to Gram per Cubic Millimeter
16.387064 kg/in3 × 0.06102374409 = 1 g/mm3
16.387064 kilogram per cubic inches = 1 gram per cubic millimeter.
grams per cubic millimeter = kilogram per cubic inches × 0.0610237440947
For a page dedicated to this direction, see Kilogram per Cubic inch to Gram per Cubic Millimeter.
Understanding the Gram per Cubic Millimeter (g/mm3)
Mass per volume density.
Understanding the Kilogram per Cubic inch (kg/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilogram per cubic inches are in 1 gram per cubic millimeter?
1 gram per cubic millimeter equals 16.387064 kilogram per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic millimeter to kilogram per cubic inch?
Multiply the gram per cubic millimeter value by 16.387064. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic inch back to gram per cubic millimeter?
Use the reverse factor: 1 kilogram per cubic inch equals 0.0610237441 grams per cubic millimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cubic millimeter?
Gram per Cubic Millimeter (g/mm3) is a unit of density.
What is a kilogram per cubic inch?
Kilogram per Cubic inch (kg/in3) is a unit of density.
Is the gram per cubic millimeter to kilogram per cubic inch conversion exact?
Yes. Both gram per cubic millimeter and kilogram per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 16.387064 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.