Mass per volume density.
Grains per Cup to Centigrams per Cubic Millimeter Converter — gr/cup to cg/mm3
Convert Grain per Cup (gr/cup) to Centigram per Cubic Millimeter (cg/mm3) using the exact conversion factor (1 grain per cup = 0.0000273889 centigram per cubic millimeter). See the formula, worked examples, and conversion table.
Grains per Cup to Centigrams 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 0.2738889767 / 10000.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Cup to Centigrams per Cubic Millimeter
Grain per Cup and Centigram 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
centigrams per cubic millimeter = grains per cup × 0.0000273888976724
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per cup equals 0.273888976724 base units, and 1 centigram per cubic millimeter equals 10000 base units, so dividing one by the other gives the direct grain per cup-to-centigram per cubic millimeter factor of 0.0000273888976724.
Simple example
1 gr/cup × 0.00002738889767 = 0.0000273889 cg/mm3
1 grain per cup = 0.0000273889 centigrams per cubic millimeter.
Real-world example
1,000 gr/cup × 0.00002738889767 = 0.0273888977 cg/mm3
1,000 grains per cup = 0.0273888977 centigrams per cubic millimeter.
Conversion table
| Grain per Cup (gr/cup) | Centigram per Cubic Millimeter (cg/mm3) |
|---|---|
| 0.1 gr/cup | 0.0000027389 cg/mm3 |
| 1 gr/cup | 0.0000273889 cg/mm3 |
| 10 gr/cup | 0.000273889 cg/mm3 |
| 100 gr/cup | 0.0027388898 cg/mm3 |
| 1,000 gr/cup | 0.0273888977 cg/mm3 |
| 10,000 gr/cup | 0.2738889767 cg/mm3 |
Reverse conversion: Centigram per Cubic Millimeter to Grain per Cup
0.0000273889 cg/mm3 × 36511.14448 = 1.000000085 gr/cup
0.0000273889 centigrams per cubic millimeter = 1.000000085 grains per cup.
grains per cup = centigrams per cubic millimeter × 36511.1444776
For a page dedicated to this direction, see Centigram per Cubic Millimeter to Grain per Cup.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Understanding the Centigram per Cubic Millimeter (cg/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many centigrams per cubic millimeter are in 1 grain per cup?
1 grain per cup equals 0.0000273889 centigrams per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert grain per cup to centigram per cubic millimeter?
Multiply the grain per cup value by 0.00002738889767. The converter above does this instantly to whatever precision you set.
How do I convert centigram per cubic millimeter back to grain per cup?
Use the reverse factor: 1 centigram per cubic millimeter equals 36,511.14448 grains per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per cup?
Grain per Cup (gr/cup) is a unit of density.
What is a centigram per cubic millimeter?
Centigram per Cubic Millimeter (cg/mm3) is a unit of density.
Is the grain per cup to centigram per cubic millimeter conversion exact?
Yes. Both grain per cup and centigram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.00002738889767 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.