Mass per volume density.
Grains per Cubic Millimeter to Slug per Cubic inches Converter — gr/mm3 to slug/in3
Convert Grain per Cubic Millimeter (gr/mm3) to Slug per Cubic inch (slug/in3) using the exact conversion factor (1 grain per cubic millimeter = 0.0727607885 slug per cubic inch). See the formula, worked examples, and conversion table.
Grains per Cubic Millimeter to Slug 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 64798.91 / 890574.5982.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Cubic Millimeter to Slug per Cubic inches
Grain per Cubic Millimeter and Slug 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
slug per cubic inches = grains per cubic millimeter × 0.0727607885204
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cubic millimeter equals 64798.91 base units, and 1 slug per cubic inch equals 890574.598183 base units, so dividing one by the other gives the direct grain per cubic millimeter-to-slug per cubic inch factor of 0.0727607885204.
Simple example
1 gr/mm3 × 0.07276078852 = 0.0727607885 slug/in3
1 grain per cubic millimeter = 0.0727607885 slug per cubic inches.
Real-world example
1,000 gr/mm3 × 0.07276078852 = 72.76078852 slug/in3
1,000 grains per cubic millimeter = 72.76078852 slug per cubic inches.
Conversion table
| Grain per Cubic Millimeter (gr/mm3) | Slug per Cubic inch (slug/in3) |
|---|---|
| 0.1 gr/mm3 | 0.0072760789 slug/in3 |
| 1 gr/mm3 | 0.0727607885 slug/in3 |
| 10 gr/mm3 | 0.7276078852 slug/in3 |
| 100 gr/mm3 | 7.276078852 slug/in3 |
| 1,000 gr/mm3 | 72.76078852 slug/in3 |
| 10,000 gr/mm3 | 727.6078852 slug/in3 |
Reverse conversion: Slug per Cubic inch to Grain per Cubic Millimeter
0.0727607885 slug/in3 × 13.74366634 = 0.9999999997 gr/mm3
0.0727607885 slug per cubic inches = 0.9999999997 grains per cubic millimeter.
grains per cubic millimeter = slug per cubic inches × 13.7436663392
For a page dedicated to this direction, see Slug per Cubic inch to Grain per Cubic Millimeter.
Understanding the Grain per Cubic Millimeter (gr/mm3)
Mass per volume density.
Understanding the Slug per Cubic inch (slug/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slug per cubic inches are in 1 grain per cubic millimeter?
1 grain per cubic millimeter equals 0.0727607885 slug per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cubic millimeter to slug per cubic inch?
Multiply the grain per cubic millimeter value by 0.07276078852. The converter above does this instantly to whatever precision you set.
How do I convert slug per cubic inch back to grain per cubic millimeter?
Use the reverse factor: 1 slug per cubic inch equals 13.74366634 grains per cubic millimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cubic millimeter?
Grain per Cubic Millimeter (gr/mm3) is a unit of density.
What is a slug per cubic inch?
Slug per Cubic inch (slug/in3) is a unit of density.
Is the grain per cubic millimeter to slug per cubic inch conversion exact?
Yes. Both grain per cubic millimeter and slug per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.07276078852 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.