Mass per volume density.
Ounces per Gallon to Drams per Imperial gallon Converter — oz/gal to dr/imp gal
Convert Ounce per Gallon (oz/gal) to Dram per Imperial gallon (dr/imp gal) using the exact conversion factor (1 ounce per gallon = 19.21519881 dram per imperial gallon). See the formula, worked examples, conversion table, and common uses.
Ounces per Gallon 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 7.489151707 / 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 Gallon to Drams per Imperial gallon
Ounce per Gallon 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. Ounce per Gallon is most often used for used to express dilution rates on many us pesticide, herbicide, and household cleaning product labels, which commonly specify a number of fluid ounces of concentrate per gallon of water.
Formula
drams per imperial gallon = ounces per gallon × 19.2151988081
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per gallon equals 7.48915170731 base units, and 1 dram per imperial gallon equals 0.389751455715 base units, so dividing one by the other gives the direct ounce per gallon-to-dram per imperial gallon factor of 19.2151988081.
Simple example
1 oz/gal × 19.21519881 = 19.21519881 dr/imp gal
1 ounce per gallon = 19.21519881 drams per imperial gallon.
Real-world example
1,000 oz/gal × 19.21519881 = 19,215.19881 dr/imp gal
1,000 ounces per gallon = 19,215.19881 drams per imperial gallon.
Conversion table
| Ounce per Gallon (oz/gal) | Dram per Imperial gallon (dr/imp gal) |
|---|---|
| 0.1 oz/gal | 1.921519881 dr/imp gal |
| 1 oz/gal | 19.21519881 dr/imp gal |
| 10 oz/gal | 192.1519881 dr/imp gal |
| 100 oz/gal | 1,921.519881 dr/imp gal |
| 1,000 oz/gal | 19,215.19881 dr/imp gal |
| 10,000 oz/gal | 192,151.9881 dr/imp gal |
Reverse conversion: Dram per Imperial gallon to Ounce per Gallon
19.21519881 dr/imp gal × 0.05204213654 = 1 oz/gal
19.21519881 drams per imperial gallon = 1 ounces per gallon.
ounces per gallon = drams per imperial gallon × 0.0520421365393
For a page dedicated to this direction, see Dram per Imperial gallon to Ounce per Gallon.
Understanding the Ounce per Gallon
Ounce per Gallon (oz/gal) measures concentration (dilution rate). A US customary way to express how much concentrate is mixed into each gallon of a diluted solution. It is classified as a US customary concentration unit.
Where it's used: United States
Uses of the Ounce per Gallon today
- Used to express dilution rates on many US pesticide, herbicide, and household cleaning product labels, which commonly specify a number of fluid ounces of concentrate per gallon of water
Understanding the Dram per Imperial gallon (dr/imp gal)
Mass per volume density.
Ounce per Gallon — sources
- US product-label dilution conventions (pesticide/herbicide industry guides) — Fluid ounces of concentrate per gallon is a widely used label format for US spray and cleaning product dilution instructions.
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 gallon?
1 ounce per gallon equals 19.21519881 drams per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per gallon to dram per imperial gallon?
Multiply the ounce per gallon value by 19.21519881. The converter above does this instantly to whatever precision you set.
How do I convert dram per imperial gallon back to ounce per gallon?
Use the reverse factor: 1 dram per imperial gallon equals 0.0520421365 ounces per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per gallon?
Ounce per Gallon (oz/gal) measures concentration (dilution rate). A US customary way to express how much concentrate is mixed into each gallon of a diluted solution. It is classified as a US customary concentration unit.
What is a dram per imperial gallon?
Dram per Imperial gallon (dr/imp gal) is a unit of density.
Is the ounce per gallon to dram per imperial gallon conversion exact?
Yes. Both ounce per gallon and dram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 19.21519881 used above is exact to as many digits as you choose to display.
Where is the ounce per gallon still used today?
United States
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.