Mass per volume density.
Ounces per Fluid ounce to Drams per Imperial gallon Converter — oz/fl oz to dr/imp gal
Convert Ounce per Fluid ounce (oz/fl oz) to Dram per Imperial gallon (dr/imp gal) using the exact conversion factor (1 ounce per fluid ounce = 2,459.545447 dram per imperial gallon). See the formula, worked examples, and conversion table.
Ounces per Fluid ounce to Drams per Imperial gallon 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 958.6114185 / 0.3897514557.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Fluid ounce to Drams per Imperial gallon
Ounce per Fluid ounce and Dram per Imperial gallon 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 imperial gallon = ounces per fluid ounce × 2459.54544743
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per fluid ounce equals 958.611418535 base units, and 1 dram per imperial gallon equals 0.389751455715 base units, so dividing one by the other gives the direct ounce per fluid ounce-to-dram per imperial gallon factor of 2459.54544743.
Simple example
1 oz/fl oz × 2459.545447 = 2,459.545447 dr/imp gal
1 ounce per fluid ounce = 2,459.545447 drams per imperial gallon.
Real-world example
1,000 oz/fl oz × 2459.545447 = 2,459,545.447 dr/imp gal
1,000 ounces per fluid ounce = 2,459,545.447 drams per imperial gallon.
Conversion table
| Ounce per Fluid ounce (oz/fl oz) | Dram per Imperial gallon (dr/imp gal) |
|---|---|
| 0.1 oz/fl oz | 245.9545447 dr/imp gal |
| 1 oz/fl oz | 2,459.545447 dr/imp gal |
| 10 oz/fl oz | 24,595.45447 dr/imp gal |
| 100 oz/fl oz | 245,954.5447 dr/imp gal |
| 1,000 oz/fl oz | 2,459,545.447 dr/imp gal |
| 10,000 oz/fl oz | 24,595,454.47 dr/imp gal |
Reverse conversion: Dram per Imperial gallon to Ounce per Fluid ounce
1 dr/imp gal × 0.0004065791917 = 0.0004065792 oz/fl oz
1 dram per imperial gallon = 0.0004065792 ounces per fluid ounce.
ounces per fluid ounce = drams per imperial gallon × 0.000406579191713
For a page dedicated to this direction, see Dram per Imperial gallon to Ounce per Fluid ounce.
Understanding the Ounce per Fluid ounce (oz/fl oz)
Mass per volume density.
Understanding the Dram per Imperial gallon (dr/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per imperial gallon are in 1 ounce per fluid ounce?
1 ounce per fluid ounce equals 2,459.545447 drams per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per fluid ounce to dram per imperial gallon?
Multiply the ounce per fluid ounce value by 2459.545447. The converter above does this instantly to whatever precision you set.
How do I convert dram per imperial gallon back to ounce per fluid ounce?
Use the reverse factor: 1 dram per imperial gallon equals 0.0004065792 ounces per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per fluid ounce?
Ounce per Fluid ounce (oz/fl oz) is a unit of density.
What is a dram per imperial gallon?
Dram per Imperial gallon (dr/imp gal) is a unit of density.
Is the ounce per fluid ounce to dram per imperial gallon conversion exact?
Yes. Both ounce per fluid ounce and dram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 2459.545447 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.