Mass per volume density.
Pounds per Oil barrel to Grains per Gallon Converter — lb/bbl to gr/gal
Convert Pound per Oil barrel (lb/bbl) to Grain per Gallon (gr/gal) using the exact conversion factor (1 pound per oil barrel = 166.6666667 grain per gallon). See the formula, worked examples, and conversion table.
Pounds 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 2.853010174 / 0.01711806105.
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 Grains per Gallon
Pound 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 = pounds per oil barrel × 166.666666667
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 grain per gallon equals 0.0171180610453 base units, so dividing one by the other gives the direct pound per oil barrel-to-grain per gallon factor of 166.666666667.
Simple example
1 lb/bbl × 166.6666667 = 166.6666667 gr/gal
1 pound per oil barrel = 166.6666667 grains per gallon.
Real-world example
1,000 lb/bbl × 166.6666667 = 166,666.6667 gr/gal
1,000 pounds per oil barrel = 166,666.6667 grains per gallon.
Conversion table
| Pound per Oil barrel (lb/bbl) | Grain per Gallon (gr/gal) |
|---|---|
| 0.1 lb/bbl | 16.66666667 gr/gal |
| 1 lb/bbl | 166.6666667 gr/gal |
| 10 lb/bbl | 1,666.666667 gr/gal |
| 100 lb/bbl | 16,666.66667 gr/gal |
| 1,000 lb/bbl | 166,666.6667 gr/gal |
| 10,000 lb/bbl | 1,666,666.667 gr/gal |
Reverse conversion: Grain per Gallon to Pound per Oil barrel
166.6666667 gr/gal × 0.006 = 1 lb/bbl
166.6666667 grains per gallon = 1 pounds per oil barrel.
pounds per oil barrel = grains per gallon × 0.006
For a page dedicated to this direction, see Grain per Gallon to Pound per Oil barrel.
Understanding the Pound per Oil barrel (lb/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 pound per oil barrel?
1 pound per oil barrel equals 166.6666667 grains per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per oil barrel to grain per gallon?
Multiply the pound per oil barrel value by 166.6666667. The converter above does this instantly to whatever precision you set.
How do I convert grain per gallon back to pound per oil barrel?
Use the reverse factor: 1 grain per gallon equals 0.006 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 grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
Is the pound per oil barrel to grain per gallon conversion exact?
Yes. Both pound per oil barrel and grain per gallon are defined by fixed standards rather than physical artifacts, so the factor of 166.6666667 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.