Mass per volume density.
Drams per Fluid ounce to Ounces per Milliliter Converter — dr/fl oz to oz/mL
Convert Dram per Fluid ounce (dr/fl oz) to Ounce per Milliliter (oz/mL) using the exact conversion factor (1 dram per fluid ounce = 0.0021133764 ounce per milliliter). See the formula, worked examples, and conversion table.
Drams per Fluid ounce to Ounces per Milliliter 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 59.91321366 / 28349.52313.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Fluid ounce to Ounces per Milliliter
Dram per Fluid ounce and Ounce per Milliliter 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 milliliter = drams per fluid ounce × 0.00211337641887
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per fluid ounce equals 59.9132136584 base units, and 1 ounce per milliliter equals 28349.523125 base units, so dividing one by the other gives the direct dram per fluid ounce-to-ounce per milliliter factor of 0.00211337641887.
Simple example
1 dr/fl oz × 0.002113376419 = 0.0021133764 oz/mL
1 dram per fluid ounce = 0.0021133764 ounces per milliliter.
Real-world example
1,000 dr/fl oz × 0.002113376419 = 2.113376419 oz/mL
1,000 drams per fluid ounce = 2.113376419 ounces per milliliter.
Conversion table
| Dram per Fluid ounce (dr/fl oz) | Ounce per Milliliter (oz/mL) |
|---|---|
| 0.1 dr/fl oz | 0.0002113376 oz/mL |
| 1 dr/fl oz | 0.0021133764 oz/mL |
| 10 dr/fl oz | 0.0211337642 oz/mL |
| 100 dr/fl oz | 0.2113376419 oz/mL |
| 1,000 dr/fl oz | 2.113376419 oz/mL |
| 10,000 dr/fl oz | 21.13376419 oz/mL |
Reverse conversion: Ounce per Milliliter to Dram per Fluid ounce
0.0021133764 oz/mL × 473.176473 = 0.9999999911 dr/fl oz
0.0021133764 ounces per milliliter = 0.9999999911 drams per fluid ounce.
drams per fluid ounce = ounces per milliliter × 473.176473
For a page dedicated to this direction, see Ounce per Milliliter to Dram per Fluid ounce.
Understanding the Dram per Fluid ounce (dr/fl oz)
Mass per volume density.
Understanding the Ounce per Milliliter (oz/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per milliliter are in 1 dram per fluid ounce?
1 dram per fluid ounce equals 0.0021133764 ounces per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert dram per fluid ounce to ounce per milliliter?
Multiply the dram per fluid ounce value by 0.002113376419. The converter above does this instantly to whatever precision you set.
How do I convert ounce per milliliter back to dram per fluid ounce?
Use the reverse factor: 1 ounce per milliliter equals 473.176473 drams per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per fluid ounce?
Dram per Fluid ounce (dr/fl oz) is a unit of density.
What is a ounce per milliliter?
Ounce per Milliliter (oz/mL) is a unit of density.
Is the dram per fluid ounce to ounce per milliliter conversion exact?
Yes. Both dram per fluid ounce and ounce per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.002113376419 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.