Mass per volume density.
Ounces per Imperial gallon to Drams per Gallon Converter — oz/imp gal to dr/gal
Convert Ounce per Imperial gallon (oz/imp gal) to Dram per Gallon (dr/gal) using the exact conversion factor (1 ounce per imperial gallon = 13.32278695 dram per gallon). See the formula, worked examples, and conversion table.
Ounces per Imperial gallon to Drams per 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 6.236023291 / 0.4680719817.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Imperial gallon to Drams per Gallon
Ounce per Imperial gallon and Dram per 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 gallon = ounces per imperial gallon × 13.3227869541
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per imperial gallon equals 6.23602329144 base units, and 1 dram per gallon equals 0.468071981707 base units, so dividing one by the other gives the direct ounce per imperial gallon-to-dram per gallon factor of 13.3227869541.
Simple example
1 oz/imp gal × 13.32278695 = 13.32278695 dr/gal
1 ounce per imperial gallon = 13.32278695 drams per gallon.
Real-world example
1,000 oz/imp gal × 13.32278695 = 13,322.78695 dr/gal
1,000 ounces per imperial gallon = 13,322.78695 drams per gallon.
Conversion table
| Ounce per Imperial gallon (oz/imp gal) | Dram per Gallon (dr/gal) |
|---|---|
| 0.1 oz/imp gal | 1.332278695 dr/gal |
| 1 oz/imp gal | 13.32278695 dr/gal |
| 10 oz/imp gal | 133.2278695 dr/gal |
| 100 oz/imp gal | 1,332.278695 dr/gal |
| 1,000 oz/imp gal | 13,322.78695 dr/gal |
| 10,000 oz/imp gal | 133,227.8695 dr/gal |
Reverse conversion: Dram per Gallon to Ounce per Imperial gallon
13.32278695 dr/gal × 0.07505937034 = 0.9999999997 oz/imp gal
13.32278695 drams per gallon = 0.9999999997 ounces per imperial gallon.
ounces per imperial gallon = drams per gallon × 0.0750593703441
For a page dedicated to this direction, see Dram per Gallon to Ounce per Imperial gallon.
Understanding the Ounce per Imperial gallon (oz/imp gal)
Mass per volume density.
Understanding the Dram per Gallon (dr/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per gallon are in 1 ounce per imperial gallon?
1 ounce per imperial gallon equals 13.32278695 drams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per imperial gallon to dram per gallon?
Multiply the ounce per imperial gallon value by 13.32278695. The converter above does this instantly to whatever precision you set.
How do I convert dram per gallon back to ounce per imperial gallon?
Use the reverse factor: 1 dram per gallon equals 0.0750593703 ounces per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per imperial gallon?
Ounce per Imperial gallon (oz/imp gal) is a unit of density.
What is a dram per gallon?
Dram per Gallon (dr/gal) is a unit of density.
Is the ounce per imperial gallon to dram per gallon conversion exact?
Yes. Both ounce per imperial gallon and dram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 13.32278695 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.