Mass per volume density.
Drams per Cubic foot to Pounds per Cup Converter — dr/ft3 to lb/cup
Convert Dram per Cubic foot (dr/ft3) to Pound per Cup (lb/cup) using the exact conversion factor (1 dram per cubic foot = 0.0000326369 pound per cup). See the formula, worked examples, and conversion table.
Drams per Cubic foot to Pounds per Cup 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 0.06257212255 / 1917.222837.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Cubic foot to Pounds per Cup
Dram per Cubic foot and Pound per Cup 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 cup = drams per cubic foot × 0.0000326368543837
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cubic foot equals 0.0625721225545 base units, and 1 pound per cup equals 1917.22283707 base units, so dividing one by the other gives the direct dram per cubic foot-to-pound per cup factor of 0.0000326368543837.
Simple example
1 dr/ft3 × 0.00003263685438 = 0.0000326369 lb/cup
1 dram per cubic foot = 0.0000326369 pounds per cup.
Real-world example
1,000 dr/ft3 × 0.00003263685438 = 0.0326368544 lb/cup
1,000 drams per cubic foot = 0.0326368544 pounds per cup.
Conversion table
| Dram per Cubic foot (dr/ft3) | Pound per Cup (lb/cup) |
|---|---|
| 0.1 dr/ft3 | 0.0000032637 lb/cup |
| 1 dr/ft3 | 0.0000326369 lb/cup |
| 10 dr/ft3 | 0.0003263685 lb/cup |
| 100 dr/ft3 | 0.0032636854 lb/cup |
| 1,000 dr/ft3 | 0.0326368544 lb/cup |
| 10,000 dr/ft3 | 0.3263685438 lb/cup |
Reverse conversion: Pound per Cup to Dram per Cubic foot
0.0000326369 lb/cup × 30640.20779 = 1.000001398 dr/ft3
0.0000326369 pounds per cup = 1.000001398 drams per cubic foot.
drams per cubic foot = pounds per cup × 30640.2077922
For a page dedicated to this direction, see Pound per Cup to Dram per Cubic foot.
Understanding the Dram per Cubic foot (dr/ft3)
Mass per volume density.
Understanding the Pound per Cup (lb/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cup are in 1 dram per cubic foot?
1 dram per cubic foot equals 0.0000326369 pounds per cup, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cubic foot to pound per cup?
Multiply the dram per cubic foot value by 0.00003263685438. The converter above does this instantly to whatever precision you set.
How do I convert pound per cup back to dram per cubic foot?
Use the reverse factor: 1 pound per cup equals 30,640.20779 drams per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cubic foot?
Dram per Cubic foot (dr/ft3) is a unit of density.
What is a pound per cup?
Pound per Cup (lb/cup) is a unit of density.
Is the dram per cubic foot to pound per cup conversion exact?
Yes. Both dram per cubic foot and pound per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.00003263685438 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.