Mass per volume density.
Kilograms per Cup to Grams per Cubic Millimeter Converter — kg/cup to g/mm3
Convert Kilogram per Cup (kg/cup) to Gram per Cubic Millimeter (g/mm3) using the exact conversion factor (1 kilogram per cup = 0.0042267528 gram per cubic millimeter). See the formula, worked examples, and conversion table.
Kilograms per Cup to Grams 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 4226.752838 / 1e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Cup to Grams per Cubic Millimeter
Kilogram per Cup and Gram 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
grams per cubic millimeter = kilograms per cup × 0.00422675283773
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cup equals 4226.75283773 base units, and 1 gram per cubic millimeter equals 1000000 base units, so dividing one by the other gives the direct kilogram per cup-to-gram per cubic millimeter factor of 0.00422675283773.
Simple example
1 kg/cup × 0.004226752838 = 0.0042267528 g/mm3
1 kilogram per cup = 0.0042267528 grams per cubic millimeter.
Real-world example
1,000 kg/cup × 0.004226752838 = 4.226752838 g/mm3
1,000 kilograms per cup = 4.226752838 grams per cubic millimeter.
Conversion table
| Kilogram per Cup (kg/cup) | Gram per Cubic Millimeter (g/mm3) |
|---|---|
| 0.1 kg/cup | 0.0004226753 g/mm3 |
| 1 kg/cup | 0.0042267528 g/mm3 |
| 10 kg/cup | 0.0422675284 g/mm3 |
| 100 kg/cup | 0.4226752838 g/mm3 |
| 1,000 kg/cup | 4.226752838 g/mm3 |
| 10,000 kg/cup | 42.26752838 g/mm3 |
Reverse conversion: Gram per Cubic Millimeter to Kilogram per Cup
0.0042267528 g/mm3 × 236.5882365 = 0.9999999911 kg/cup
0.0042267528 grams per cubic millimeter = 0.9999999911 kilograms per cup.
kilograms per cup = grams per cubic millimeter × 236.5882365
For a page dedicated to this direction, see Gram per Cubic Millimeter to Kilogram per Cup.
Understanding the Kilogram per Cup (kg/cup)
Mass per volume density.
Understanding the Gram per Cubic Millimeter (g/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grams per cubic millimeter are in 1 kilogram per cup?
1 kilogram per cup equals 0.0042267528 grams per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cup to gram per cubic millimeter?
Multiply the kilogram per cup value by 0.004226752838. The converter above does this instantly to whatever precision you set.
How do I convert gram per cubic millimeter back to kilogram per cup?
Use the reverse factor: 1 gram per cubic millimeter equals 236.5882365 kilograms per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per cup?
Kilogram per Cup (kg/cup) is a unit of density.
What is a gram per cubic millimeter?
Gram per Cubic Millimeter (g/mm3) is a unit of density.
Is the kilogram per cup to gram per cubic millimeter conversion exact?
Yes. Both kilogram per cup and gram 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.