Mass per volume density.
Troy ounces per Gallon to Drams per Gallon Converter — oz t/gal to dr/gal
Convert Troy ounce per Gallon (oz t/gal) to Dram per Gallon (dr/gal) using the exact conversion factor (1 troy ounce per gallon = 17.55428571 dram per gallon). See the formula, worked examples, and conversion table.
Troy ounces per 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 8.216669302 / 0.4680719817.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces per Gallon to Drams per Gallon
Troy ounce per 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 = troy ounces per gallon × 17.5542857143
This factor comes from each unit's defined relationship to the category's base unit: 1 troy ounce per gallon equals 8.21666930173 base units, and 1 dram per gallon equals 0.468071981707 base units, so dividing one by the other gives the direct troy ounce per gallon-to-dram per gallon factor of 17.5542857143.
Simple example
1 oz t/gal × 17.55428571 = 17.55428571 dr/gal
1 troy ounce per gallon = 17.55428571 drams per gallon.
Real-world example
1,000 oz t/gal × 17.55428571 = 17,554.28571 dr/gal
1,000 troy ounces per gallon = 17,554.28571 drams per gallon.
Conversion table
| Troy ounce per Gallon (oz t/gal) | Dram per Gallon (dr/gal) |
|---|---|
| 0.1 oz t/gal | 1.755428571 dr/gal |
| 1 oz t/gal | 17.55428571 dr/gal |
| 10 oz t/gal | 175.5428571 dr/gal |
| 100 oz t/gal | 1,755.428571 dr/gal |
| 1,000 oz t/gal | 17,554.28571 dr/gal |
| 10,000 oz t/gal | 175,542.8571 dr/gal |
Reverse conversion: Dram per Gallon to Troy ounce per Gallon
17.55428571 dr/gal × 0.05696614583 = 0.9999999998 oz t/gal
17.55428571 drams per gallon = 0.9999999998 troy ounces per gallon.
troy ounces per gallon = drams per gallon × 0.0569661458333
For a page dedicated to this direction, see Dram per Gallon to Troy ounce per Gallon.
Understanding the Troy ounce per Gallon (oz t/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 troy ounce per gallon?
1 troy ounce per gallon equals 17.55428571 drams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce per gallon to dram per gallon?
Multiply the troy ounce per gallon value by 17.55428571. The converter above does this instantly to whatever precision you set.
How do I convert dram per gallon back to troy ounce per gallon?
Use the reverse factor: 1 dram per gallon equals 0.0569661458 troy ounces per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a troy ounce per gallon?
Troy ounce per Gallon (oz t/gal) is a unit of density.
What is a dram per gallon?
Dram per Gallon (dr/gal) is a unit of density.
Is the troy ounce per gallon to dram per gallon conversion exact?
Yes. Both troy ounce per gallon and dram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 17.55428571 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.