Mass per volume density.
Drams per Oil barrel to Grains per Gallon Converter — dr/bbl to gr/gal
Convert Dram per Oil barrel (dr/bbl) to Grain per Gallon (gr/gal) using the exact conversion factor (1 dram per oil barrel = 0.6510416667 grain per gallon). See the formula, worked examples, and conversion table.
Drams per Oil barrel to Grains 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 / 0.01711806105.
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 Grains per Gallon
Dram per Oil barrel and Grain 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
grains per gallon = drams per oil barrel × 0.651041666667
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 grain per gallon equals 0.0171180610453 base units, so dividing one by the other gives the direct dram per oil barrel-to-grain per gallon factor of 0.651041666667.
Simple example
1 dr/bbl × 0.6510416667 = 0.6510416667 gr/gal
1 dram per oil barrel = 0.6510416667 grains per gallon.
Real-world example
1,000 dr/bbl × 0.6510416667 = 651.0416667 gr/gal
1,000 drams per oil barrel = 651.0416667 grains per gallon.
Conversion table
| Dram per Oil barrel (dr/bbl) | Grain per Gallon (gr/gal) |
|---|---|
| 0.1 dr/bbl | 0.0651041667 gr/gal |
| 1 dr/bbl | 0.6510416667 gr/gal |
| 10 dr/bbl | 6.510416667 gr/gal |
| 100 dr/bbl | 65.10416667 gr/gal |
| 1,000 dr/bbl | 651.0416667 gr/gal |
| 10,000 dr/bbl | 6,510.416667 gr/gal |
Reverse conversion: Grain per Gallon to Dram per Oil barrel
0.6510416667 gr/gal × 1.536 = 1 dr/bbl
0.6510416667 grains per gallon = 1 drams per oil barrel.
drams per oil barrel = grains per gallon × 1.536
For a page dedicated to this direction, see Grain per Gallon to Dram per Oil barrel.
Understanding the Dram per Oil barrel (dr/bbl)
Mass per volume density.
Understanding the Grain per Gallon (gr/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per gallon are in 1 dram per oil barrel?
1 dram per oil barrel equals 0.6510416667 grains per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per oil barrel to grain per gallon?
Multiply the dram per oil barrel value by 0.6510416667. The converter above does this instantly to whatever precision you set.
How do I convert grain per gallon back to dram per oil barrel?
Use the reverse factor: 1 grain per gallon equals 1.536 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 grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
Is the dram per oil barrel to grain per gallon conversion exact?
Yes. Both dram per oil barrel and grain per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.6510416667 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.