Mass per volume density.
Ounces per Cubic foot to Drams per Cup Converter — oz/ft3 to dr/cup
Convert Ounce per Cubic foot (oz/ft3) to Dram per Cup (dr/cup) using the exact conversion factor (1 ounce per cubic foot = 0.1336805556 dram per cup). See the formula, worked examples, and conversion table.
Ounces per Cubic foot to Drams 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 1.001153961 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Cubic foot to Drams per Cup
Ounce per Cubic foot and Dram 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
drams per cup = ounces per cubic foot × 0.133680555556
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cubic foot equals 1.00115396087 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct ounce per cubic foot-to-dram per cup factor of 0.133680555556.
Simple example
1 oz/ft3 × 0.1336805556 = 0.1336805556 dr/cup
1 ounce per cubic foot = 0.1336805556 drams per cup.
Real-world example
1,000 oz/ft3 × 0.1336805556 = 133.6805556 dr/cup
1,000 ounces per cubic foot = 133.6805556 drams per cup.
Conversion table
| Ounce per Cubic foot (oz/ft3) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 oz/ft3 | 0.0133680556 dr/cup |
| 1 oz/ft3 | 0.1336805556 dr/cup |
| 10 oz/ft3 | 1.336805556 dr/cup |
| 100 oz/ft3 | 13.36805556 dr/cup |
| 1,000 oz/ft3 | 133.6805556 dr/cup |
| 10,000 oz/ft3 | 1,336.805556 dr/cup |
Reverse conversion: Dram per Cup to Ounce per Cubic foot
0.1336805556 dr/cup × 7.480519481 = 1 oz/ft3
0.1336805556 drams per cup = 1 ounces per cubic foot.
ounces per cubic foot = drams per cup × 7.48051948052
For a page dedicated to this direction, see Dram per Cup to Ounce per Cubic foot.
Understanding the Ounce per Cubic foot (oz/ft3)
Mass per volume density.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per cup are in 1 ounce per cubic foot?
1 ounce per cubic foot equals 0.1336805556 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cubic foot to dram per cup?
Multiply the ounce per cubic foot value by 0.1336805556. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to ounce per cubic foot?
Use the reverse factor: 1 dram per cup equals 7.480519481 ounces per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cubic foot?
Ounce per Cubic foot (oz/ft3) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the ounce per cubic foot to dram per cup conversion exact?
Yes. Both ounce per cubic foot and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.1336805556 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.