Mass per volume density.
Grams per Cup to Pounds per Cubic Meter Converter — g/cup to lb/m3
Convert Gram per Cup (g/cup) to Pound per Cubic Meter (lb/m3) using the exact conversion factor (1 gram per cup = 9.318394923 pound per cubic meter). See the formula, worked examples, and conversion table.
Grams per Cup to Pounds per Cubic Meter 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 / 0.45359237.
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 Pounds per Cubic Meter
Gram per Cup and Pound per Cubic Meter 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
pounds per cubic meter = grams per cup × 9.31839492302
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 pound per cubic meter equals 0.45359237 base units, so dividing one by the other gives the direct gram per cup-to-pound per cubic meter factor of 9.31839492302.
Simple example
1 g/cup × 9.318394923 = 9.318394923 lb/m3
1 gram per cup = 9.318394923 pounds per cubic meter.
Real-world example
1,000 g/cup × 9.318394923 = 9,318.394923 lb/m3
1,000 grams per cup = 9,318.394923 pounds per cubic meter.
Conversion table
| Gram per Cup (g/cup) | Pound per Cubic Meter (lb/m3) |
|---|---|
| 0.1 g/cup | 0.9318394923 lb/m3 |
| 1 g/cup | 9.318394923 lb/m3 |
| 10 g/cup | 93.18394923 lb/m3 |
| 100 g/cup | 931.8394923 lb/m3 |
| 1,000 g/cup | 9,318.394923 lb/m3 |
| 10,000 g/cup | 93,183.94923 lb/m3 |
Reverse conversion: Pound per Cubic Meter to Gram per Cup
9.318394923 lb/m3 × 0.1073146189 = 1 g/cup
9.318394923 pounds per cubic meter = 1 grams per cup.
grams per cup = pounds per cubic meter × 0.107314618908
For a page dedicated to this direction, see Pound per Cubic Meter to Gram per Cup.
Understanding the Gram per Cup (g/cup)
Mass per volume density.
Understanding the Pound per Cubic Meter (lb/m3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cubic meter are in 1 gram per cup?
1 gram per cup equals 9.318394923 pounds per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cup to pound per cubic meter?
Multiply the gram per cup value by 9.318394923. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic meter back to gram per cup?
Use the reverse factor: 1 pound per cubic meter equals 0.1073146189 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 pound per cubic meter?
Pound per Cubic Meter (lb/m3) is a unit of density.
Is the gram per cup to pound per cubic meter conversion exact?
Yes. Both gram per cup and pound per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 9.318394923 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.