Mass per volume density.
Drams per Cup to Ounces per Fluid ounce Converter — dr/cup to oz/fl oz
Convert Dram per Cup (dr/cup) to Ounce per Fluid ounce (oz/fl oz) using the exact conversion factor (1 dram per cup = 0.0078125 ounce per fluid ounce). See the formula, worked examples, and conversion table.
Drams per Cup to Ounces per Fluid ounce 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 7.489151707 / 958.6114185.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Cup to Ounces per Fluid ounce
Dram per Cup and Ounce per Fluid ounce 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
ounces per fluid ounce = drams per cup × 0.0078125
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per cup equals 7.48915170731 base units, and 1 ounce per fluid ounce equals 958.611418535 base units, so dividing one by the other gives the direct dram per cup-to-ounce per fluid ounce factor of 0.0078125.
Simple example
1 dr/cup × 0.0078125 = 0.0078125 oz/fl oz
1 dram per cup = 0.0078125 ounces per fluid ounce.
Real-world example
1,000 dr/cup × 0.0078125 = 7.8125 oz/fl oz
1,000 drams per cup = 7.8125 ounces per fluid ounce.
Conversion table
| Dram per Cup (dr/cup) | Ounce per Fluid ounce (oz/fl oz) |
|---|---|
| 0.1 dr/cup | 0.00078125 oz/fl oz |
| 1 dr/cup | 0.0078125 oz/fl oz |
| 10 dr/cup | 0.078125 oz/fl oz |
| 100 dr/cup | 0.78125 oz/fl oz |
| 1,000 dr/cup | 7.8125 oz/fl oz |
| 10,000 dr/cup | 78.125 oz/fl oz |
Reverse conversion: Ounce per Fluid ounce to Dram per Cup
0.0078125 oz/fl oz × 128 = 1 dr/cup
0.0078125 ounces per fluid ounce = 1 dram per cup.
drams per cup = ounces per fluid ounce × 128
For a page dedicated to this direction, see Ounce per Fluid ounce to Dram per Cup.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Understanding the Ounce per Fluid ounce (oz/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per fluid ounce are in 1 dram per cup?
1 dram per cup equals 0.0078125 ounces per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert dram per cup to ounce per fluid ounce?
Multiply the dram per cup value by 0.0078125. The converter above does this instantly to whatever precision you set.
How do I convert ounce per fluid ounce back to dram per cup?
Use the reverse factor: 1 ounce per fluid ounce equals 128 drams per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
What is a ounce per fluid ounce?
Ounce per Fluid ounce (oz/fl oz) is a unit of density.
Is the dram per cup to ounce per fluid ounce conversion exact?
Yes. Both dram per cup and ounce per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.0078125 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.