Mass per volume density.
Troy ounces per Liter to Drams per Gallon Converter — oz t/L to dr/gal
Convert Troy ounce per Liter (oz t/L) to Dram per Gallon (dr/gal) using the exact conversion factor (1 troy ounce per liter = 66.4502 dram per gallon). See the formula, worked examples, and conversion table.
Troy ounces per Liter 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 31.1034768 / 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 Liter to Drams per Gallon
Troy ounce per Liter 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 liter × 66.4502000026
This factor comes from each unit's defined relationship to the category's base unit: 1 troy ounce per liter equals 31.1034768 base units, and 1 dram per gallon equals 0.468071981707 base units, so dividing one by the other gives the direct troy ounce per liter-to-dram per gallon factor of 66.4502000026.
Simple example
1 oz t/L × 66.4502 = 66.4502 dr/gal
1 troy ounce per liter = 66.4502 drams per gallon.
Real-world example
1,000 oz t/L × 66.4502 = 66,450.2 dr/gal
1,000 troy ounces per liter = 66,450.2 drams per gallon.
Conversion table
| Troy ounce per Liter (oz t/L) | Dram per Gallon (dr/gal) |
|---|---|
| 0.1 oz t/L | 6.64502 dr/gal |
| 1 oz t/L | 66.4502 dr/gal |
| 10 oz t/L | 664.502 dr/gal |
| 100 oz t/L | 6,645.02 dr/gal |
| 1,000 oz t/L | 66,450.2 dr/gal |
| 10,000 oz t/L | 664,502 dr/gal |
Reverse conversion: Dram per Gallon to Troy ounce per Liter
66.4502 dr/gal × 0.01504886366 = 1 oz t/L
66.4502 drams per gallon = 1 troy ounces per liter.
troy ounces per liter = drams per gallon × 0.0150488636597
For a page dedicated to this direction, see Dram per Gallon to Troy ounce per Liter.
Understanding the Troy ounce per Liter (oz t/L)
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 liter?
1 troy ounce per liter equals 66.4502 drams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce per liter to dram per gallon?
Multiply the troy ounce per liter value by 66.4502. The converter above does this instantly to whatever precision you set.
How do I convert dram per gallon back to troy ounce per liter?
Use the reverse factor: 1 dram per gallon equals 0.0150488637 troy ounces per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a troy ounce per liter?
Troy ounce per Liter (oz t/L) 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 liter to dram per gallon conversion exact?
Yes. Both troy ounce per liter and dram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 66.4502 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.