Mass per volume density.
Grains per Oil barrel to Drams per Cup Converter — gr/bbl to dr/cup
Convert Grain per Oil barrel (gr/bbl) to Dram per Cup (dr/cup) using the exact conversion factor (1 grain per oil barrel = 0.0000544218 dram per cup). See the formula, worked examples, and conversion table.
Grains per Oil barrel to Drams per Cup 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 0.000407572882 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Oil barrel to Drams per Cup
Grain per Oil barrel and Dram per Cup 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 cup = grains per oil barrel × 0.0000544217687075
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per oil barrel equals 0.00040757288203 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct grain per oil barrel-to-dram per cup factor of 0.0000544217687075.
Simple example
1 gr/bbl × 0.00005442176871 = 0.0000544218 dr/cup
1 grain per oil barrel = 0.0000544218 drams per cup.
Real-world example
1,000 gr/bbl × 0.00005442176871 = 0.0544217687 dr/cup
1,000 grains per oil barrel = 0.0544217687 drams per cup.
Conversion table
| Grain per Oil barrel (gr/bbl) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 gr/bbl | 0.0000054422 dr/cup |
| 1 gr/bbl | 0.0000544218 dr/cup |
| 10 gr/bbl | 0.0005442177 dr/cup |
| 100 gr/bbl | 0.0054421769 dr/cup |
| 1,000 gr/bbl | 0.0544217687 dr/cup |
| 10,000 gr/bbl | 0.5442176871 dr/cup |
Reverse conversion: Dram per Cup to Grain per Oil barrel
0.0000544218 dr/cup × 18375 = 1.000000575 gr/bbl
0.0000544218 drams per cup = 1.000000575 grains per oil barrel.
grains per oil barrel = drams per cup × 18375
For a page dedicated to this direction, see Dram per Cup to Grain per Oil barrel.
Understanding the Grain per Oil barrel (gr/bbl)
Mass per volume density.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per cup are in 1 grain per oil barrel?
1 grain per oil barrel equals 0.0000544218 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert grain per oil barrel to dram per cup?
Multiply the grain per oil barrel value by 0.00005442176871. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to grain per oil barrel?
Use the reverse factor: 1 dram per cup equals 18,375 grains per oil barrel. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per oil barrel?
Grain per Oil barrel (gr/bbl) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the grain per oil barrel to dram per cup conversion exact?
Yes. Both grain per oil barrel and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.00005442176871 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.