Mass per volume density.
Milligrams per Fluid ounce to Drams per Cup Converter — mg/fl oz to dr/cup
Convert Milligram per Fluid ounce (mg/fl oz) to Dram per Cup (dr/cup) using the exact conversion factor (1 milligram per fluid ounce = 0.0045150671 dram per cup). See the formula, worked examples, and conversion table.
Milligrams per Fluid ounce 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 0.0338140227 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Fluid ounce to Drams per Cup
Milligram per Fluid ounce 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 = milligrams per fluid ounce × 0.00451506712955
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per fluid ounce equals 0.0338140227018 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct milligram per fluid ounce-to-dram per cup factor of 0.00451506712955.
Simple example
1 mg/fl oz × 0.00451506713 = 0.0045150671 dr/cup
1 milligram per fluid ounce = 0.0045150671 drams per cup.
Real-world example
1,000 mg/fl oz × 0.00451506713 = 4.51506713 dr/cup
1,000 milligrams per fluid ounce = 4.51506713 drams per cup.
Conversion table
| Milligram per Fluid ounce (mg/fl oz) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 mg/fl oz | 0.0004515067 dr/cup |
| 1 mg/fl oz | 0.0045150671 dr/cup |
| 10 mg/fl oz | 0.0451506713 dr/cup |
| 100 mg/fl oz | 0.451506713 dr/cup |
| 1,000 mg/fl oz | 4.51506713 dr/cup |
| 10,000 mg/fl oz | 45.1506713 dr/cup |
Reverse conversion: Dram per Cup to Milligram per Fluid ounce
0.0045150671 dr/cup × 221.4806494 = 0.9999999935 mg/fl oz
0.0045150671 drams per cup = 0.9999999935 milligrams per fluid ounce.
milligrams per fluid ounce = drams per cup × 221.480649414
For a page dedicated to this direction, see Dram per Cup to Milligram per Fluid ounce.
Understanding the Milligram per Fluid ounce (mg/fl oz)
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 milligram per fluid ounce?
1 milligram per fluid ounce equals 0.0045150671 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per fluid ounce to dram per cup?
Multiply the milligram per fluid ounce value by 0.00451506713. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to milligram per fluid ounce?
Use the reverse factor: 1 dram per cup equals 221.4806494 milligrams per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per fluid ounce?
Milligram per Fluid ounce (mg/fl oz) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the milligram per fluid ounce to dram per cup conversion exact?
Yes. Both milligram per fluid ounce and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.00451506713 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.