Mass per volume density.
Grams per Cubic Millimeter to Grains per Cubic Millimeter Converter — g/mm3 to gr/mm3
Convert Gram per Cubic Millimeter (g/mm3) to Grain per Cubic Millimeter (gr/mm3) using the exact conversion factor (1 gram per cubic millimeter = 15.43235835 grain per cubic millimeter). See the formula, worked examples, and conversion table.
Grams per Cubic Millimeter to Grains 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 1e+6 / 64798.91.
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 Grains per Cubic Millimeter
Gram per Cubic Millimeter and Grain 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
grains per cubic millimeter = grams per cubic millimeter × 15.4323583529
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 grain per cubic millimeter equals 64798.91 base units, so dividing one by the other gives the direct gram per cubic millimeter-to-grain per cubic millimeter factor of 15.4323583529.
Simple example
1 g/mm3 × 15.43235835 = 15.43235835 gr/mm3
1 gram per cubic millimeter = 15.43235835 grains per cubic millimeter.
Real-world example
1,000 g/mm3 × 15.43235835 = 15,432.35835 gr/mm3
1,000 grams per cubic millimeter = 15,432.35835 grains per cubic millimeter.
Conversion table
| Gram per Cubic Millimeter (g/mm3) | Grain per Cubic Millimeter (gr/mm3) |
|---|---|
| 0.1 g/mm3 | 1.543235835 gr/mm3 |
| 1 g/mm3 | 15.43235835 gr/mm3 |
| 10 g/mm3 | 154.3235835 gr/mm3 |
| 100 g/mm3 | 1,543.235835 gr/mm3 |
| 1,000 g/mm3 | 15,432.35835 gr/mm3 |
| 10,000 g/mm3 | 154,323.5835 gr/mm3 |
Reverse conversion: Grain per Cubic Millimeter to Gram per Cubic Millimeter
15.43235835 gr/mm3 × 0.06479891 = 0.9999999998 g/mm3
15.43235835 grains per cubic millimeter = 0.9999999998 grams per cubic millimeter.
grams per cubic millimeter = grains per cubic millimeter × 0.06479891
For a page dedicated to this direction, see Grain per Cubic Millimeter to Gram per Cubic Millimeter.
Understanding the Gram per Cubic Millimeter (g/mm3)
Mass per volume density.
Understanding the Grain per Cubic Millimeter (gr/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cubic millimeter are in 1 gram per cubic millimeter?
1 gram per cubic millimeter equals 15.43235835 grains per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic millimeter to grain per cubic millimeter?
Multiply the gram per cubic millimeter value by 15.43235835. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic millimeter back to gram per cubic millimeter?
Use the reverse factor: 1 grain per cubic millimeter equals 0.06479891 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 grain per cubic millimeter?
Grain per Cubic Millimeter (gr/mm3) is a unit of density.
Is the gram per cubic millimeter to grain per cubic millimeter conversion exact?
Yes. Both gram per cubic millimeter and grain per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 15.43235835 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.