Mass per volume density.
Grams per Cup to Milligrams per Cubic Millimeter Converter — g/cup to mg/mm3
Convert Gram per Cup (g/cup) to Milligram per Cubic Millimeter (mg/mm3) using the exact conversion factor (1 gram per cup = 0.0042267528 milligram per cubic millimeter). See the formula, worked examples, and conversion table.
Grams per Cup to Milligrams 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 4.226752838 / 1000.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cup to Milligrams per Cubic Millimeter
Gram per Cup and Milligram 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
milligrams per cubic millimeter = grams per cup × 0.00422675283773
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cup equals 4.22675283773 base units, and 1 milligram per cubic millimeter equals 1000 base units, so dividing one by the other gives the direct gram per cup-to-milligram per cubic millimeter factor of 0.00422675283773.
Simple example
1 g/cup × 0.004226752838 = 0.0042267528 mg/mm3
1 gram per cup = 0.0042267528 milligrams per cubic millimeter.
Real-world example
1,000 g/cup × 0.004226752838 = 4.226752838 mg/mm3
1,000 grams per cup = 4.226752838 milligrams per cubic millimeter.
Conversion table
| Gram per Cup (g/cup) | Milligram per Cubic Millimeter (mg/mm3) |
|---|---|
| 0.1 g/cup | 0.0004226753 mg/mm3 |
| 1 g/cup | 0.0042267528 mg/mm3 |
| 10 g/cup | 0.0422675284 mg/mm3 |
| 100 g/cup | 0.4226752838 mg/mm3 |
| 1,000 g/cup | 4.226752838 mg/mm3 |
| 10,000 g/cup | 42.26752838 mg/mm3 |
Reverse conversion: Milligram per Cubic Millimeter to Gram per Cup
0.0042267528 mg/mm3 × 236.5882365 = 0.9999999911 g/cup
0.0042267528 milligrams per cubic millimeter = 0.9999999911 grams per cup.
grams per cup = milligrams per cubic millimeter × 236.5882365
For a page dedicated to this direction, see Milligram per Cubic Millimeter to Gram per Cup.
Understanding the Gram per Cup (g/cup)
Mass per volume density.
Understanding the Milligram per Cubic Millimeter (mg/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per cubic millimeter are in 1 gram per cup?
1 gram per cup equals 0.0042267528 milligrams per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cup to milligram per cubic millimeter?
Multiply the gram per cup value by 0.004226752838. The converter above does this instantly to whatever precision you set.
How do I convert milligram per cubic millimeter back to gram per cup?
Use the reverse factor: 1 milligram per cubic millimeter equals 236.5882365 grams per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cup?
Gram per Cup (g/cup) is a unit of density.
What is a milligram per cubic millimeter?
Milligram per Cubic Millimeter (mg/mm3) is a unit of density.
Is the gram per cup to milligram per cubic millimeter conversion exact?
Yes. Both gram per cup and milligram per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.004226752838 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.