Mass per volume density.
Pounds per Oil barrel to Drams per Oil barrel Converter — lb/bbl to dr/bbl
Convert Pound per Oil barrel (lb/bbl) to Dram per Oil barrel (dr/bbl) using the exact conversion factor (1 pound per oil barrel = 256 dram per oil barrel). See the formula, worked examples, and conversion table.
Pounds per Oil barrel to Drams per Oil barrel 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 / 0.01114457099.
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 Oil barrel
Pound per Oil barrel and Dram per Oil barrel 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 oil barrel = pounds per oil barrel × 256
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 oil barrel equals 0.011144570993 base units, so dividing one by the other gives the direct pound per oil barrel-to-dram per oil barrel factor of 256.
Simple example
1 lb/bbl × 256 = 256 dr/bbl
1 pound per oil barrel = 256 drams per oil barrel.
Real-world example
1,000 lb/bbl × 256 = 256,000 dr/bbl
1,000 pounds per oil barrel = 256,000 drams per oil barrel.
Conversion table
| Pound per Oil barrel (lb/bbl) | Dram per Oil barrel (dr/bbl) |
|---|---|
| 0.1 lb/bbl | 25.6 dr/bbl |
| 1 lb/bbl | 256 dr/bbl |
| 10 lb/bbl | 2,560 dr/bbl |
| 100 lb/bbl | 25,600 dr/bbl |
| 1,000 lb/bbl | 256,000 dr/bbl |
| 10,000 lb/bbl | 2,560,000 dr/bbl |
Reverse conversion: Dram per Oil barrel to Pound per Oil barrel
256 dr/bbl × 0.00390625 = 1 lb/bbl
256 drams per oil barrel = 1 pound per oil barrel.
pounds per oil barrel = drams per oil barrel × 0.00390625
For a page dedicated to this direction, see Dram per Oil barrel to Pound per Oil barrel.
Understanding the Pound per Oil barrel (lb/bbl)
Mass per volume density.
Understanding the Dram per Oil barrel (dr/bbl)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per oil barrel are in 1 pound per oil barrel?
1 pound per oil barrel equals 256 drams per oil barrel, using the exact defined conversion factor rather than an estimate.
How do I convert pound per oil barrel to dram per oil barrel?
Multiply the pound per oil barrel value by 256. The converter above does this instantly to whatever precision you set.
How do I convert dram per oil barrel back to pound per oil barrel?
Use the reverse factor: 1 dram per oil barrel equals 0.00390625 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 oil barrel?
Dram per Oil barrel (dr/bbl) is a unit of density.
Is the pound per oil barrel to dram per oil barrel conversion exact?
Yes. Both pound per oil barrel and dram per oil barrel are defined by fixed standards rather than physical artifacts, so the factor of 256 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.