Mass per volume density.
Ounces per Milliliter to Drams per Cup Converter — oz/mL to dr/cup
Convert Ounce per Milliliter (oz/mL) to Dram per Cup (dr/cup) using the exact conversion factor (1 ounce per milliliter = 3,785.411784 dram per cup). See the formula, worked examples, and conversion table.
Ounces per Milliliter 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 28349.52313 / 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 Milliliter to Drams per Cup
Ounce per Milliliter 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 milliliter × 3785.411784
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per milliliter equals 28349.523125 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct ounce per milliliter-to-dram per cup factor of 3785.411784.
Simple example
1 oz/mL × 3785.411784 = 3,785.411784 dr/cup
1 ounce per milliliter = 3,785.411784 drams per cup.
Real-world example
1,000 oz/mL × 3785.411784 = 3,785,411.784 dr/cup
1,000 ounces per milliliter = 3,785,411.784 drams per cup.
Conversion table
| Ounce per Milliliter (oz/mL) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 oz/mL | 378.5411784 dr/cup |
| 1 oz/mL | 3,785.411784 dr/cup |
| 10 oz/mL | 37,854.11784 dr/cup |
| 100 oz/mL | 378,541.1784 dr/cup |
| 1,000 oz/mL | 3,785,411.784 dr/cup |
| 10,000 oz/mL | 37,854,117.84 dr/cup |
Reverse conversion: Dram per Cup to Ounce per Milliliter
1 dr/cup × 0.0002641720524 = 0.0002641721 oz/mL
1 dram per cup = 0.0002641721 ounces per milliliter.
ounces per milliliter = drams per cup × 0.000264172052358
For a page dedicated to this direction, see Dram per Cup to Ounce per Milliliter.
Understanding the Ounce per Milliliter (oz/mL)
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 milliliter?
1 ounce per milliliter equals 3,785.411784 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per milliliter to dram per cup?
Multiply the ounce per milliliter value by 3785.411784. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to ounce per milliliter?
Use the reverse factor: 1 dram per cup equals 0.0002641721 ounces per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per milliliter?
Ounce per Milliliter (oz/mL) 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 milliliter to dram per cup conversion exact?
Yes. Both ounce per milliliter and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 3785.411784 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.