Mass per volume density.
Pounds per Oil barrel to Drams per Cup Converter — lb/bbl to dr/cup
Convert Pound per Oil barrel (lb/bbl) to Dram per Cup (dr/cup) using the exact conversion factor (1 pound per oil barrel = 0.380952381 dram per cup). See the formula, worked examples, and conversion table.
Pounds 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 2.853010174 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Oil barrel to Drams per Cup
Pound 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 = pounds per oil barrel × 0.380952380952
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per oil barrel equals 2.85301017421 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct pound per oil barrel-to-dram per cup factor of 0.380952380952.
Simple example
1 lb/bbl × 0.380952381 = 0.380952381 dr/cup
1 pound per oil barrel = 0.380952381 drams per cup.
Real-world example
1,000 lb/bbl × 0.380952381 = 380.952381 dr/cup
1,000 pounds per oil barrel = 380.952381 drams per cup.
Conversion table
| Pound per Oil barrel (lb/bbl) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 lb/bbl | 0.0380952381 dr/cup |
| 1 lb/bbl | 0.380952381 dr/cup |
| 10 lb/bbl | 3.80952381 dr/cup |
| 100 lb/bbl | 38.0952381 dr/cup |
| 1,000 lb/bbl | 380.952381 dr/cup |
| 10,000 lb/bbl | 3,809.52381 dr/cup |
Reverse conversion: Dram per Cup to Pound per Oil barrel
0.380952381 dr/cup × 2.625 = 1 lb/bbl
0.380952381 drams per cup = 1 pounds per oil barrel.
pounds per oil barrel = drams per cup × 2.625
For a page dedicated to this direction, see Dram per Cup to Pound per Oil barrel.
Understanding the Pound per Oil barrel (lb/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 pound per oil barrel?
1 pound per oil barrel equals 0.380952381 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert pound per oil barrel to dram per cup?
Multiply the pound per oil barrel value by 0.380952381. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to pound per oil barrel?
Use the reverse factor: 1 dram per cup equals 2.625 pounds per oil barrel. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per oil barrel?
Pound per Oil barrel (lb/bbl) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the pound per oil barrel to dram per cup conversion exact?
Yes. Both pound per oil barrel and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.380952381 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.