Mass per volume density.
Drams per Oil barrel to Long tons per Gallon Converter — dr/bbl to long ton/gal
Convert Dram per Oil barrel (dr/bbl) to Long ton per Gallon (long ton/gal) using the exact conversion factor (1 dram per oil barrel = 4.152051e-8 long ton per gallon). See the formula, worked examples, and conversion table.
Drams per Oil barrel to Long tons 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 0.01114457099 / 268411.1972.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Oil barrel to Long tons per Gallon
Dram per Oil barrel and Long ton 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
long tons per gallon = drams per oil barrel × 4.152051e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per oil barrel equals 0.011144570993 base units, and 1 long ton per gallon equals 268411.19719 base units, so dividing one by the other gives the direct dram per oil barrel-to-long ton per gallon factor of 4.152051e-8.
Simple example
1 dr/bbl × 4.152051e-8 = 4.152051e-8 long ton/gal
1 dram per oil barrel = 4.152051e-8 long tons per gallon.
Real-world example
1,000 dr/bbl × 4.152051e-8 = 0.0000415205 long ton/gal
1,000 drams per oil barrel = 0.0000415205 long tons per gallon.
Conversion table
| Dram per Oil barrel (dr/bbl) | Long ton per Gallon (long ton/gal) |
|---|---|
| 0.1 dr/bbl | 4.152051e-9 long ton/gal |
| 1 dr/bbl | 4.152051e-8 long ton/gal |
| 10 dr/bbl | 4.152051e-7 long ton/gal |
| 100 dr/bbl | 0.0000041521 long ton/gal |
| 1,000 dr/bbl | 0.0000415205 long ton/gal |
| 10,000 dr/bbl | 0.0004152051 long ton/gal |
Reverse conversion: Long ton per Gallon to Dram per Oil barrel
4.152051e-8 long ton/gal × 24084480 = 0.9999998927 dr/bbl
4.152051e-8 long tons per gallon = 0.9999998927 drams per oil barrel.
drams per oil barrel = long tons per gallon × 24084480
For a page dedicated to this direction, see Long ton per Gallon to Dram per Oil barrel.
Understanding the Dram per Oil barrel (dr/bbl)
Mass per volume density.
Understanding the Long ton per Gallon (long ton/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons per gallon are in 1 dram per oil barrel?
1 dram per oil barrel equals 4.152051e-8 long tons per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per oil barrel to long ton per gallon?
Multiply the dram per oil barrel value by 4.152051e-8. The converter above does this instantly to whatever precision you set.
How do I convert long ton per gallon back to dram per oil barrel?
Use the reverse factor: 1 long ton per gallon equals 24,084,480 drams per oil barrel. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per oil barrel?
Dram per Oil barrel (dr/bbl) is a unit of density.
What is a long ton per gallon?
Long ton per Gallon (long ton/gal) is a unit of density.
Is the dram per oil barrel to long ton per gallon conversion exact?
Yes. Both dram per oil barrel and long ton per gallon are defined by fixed standards rather than physical artifacts, so the factor of 4.152051e-8 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.