Mass per volume density.
Grams per Oil barrel to Grains per Gallon Converter — g/bbl to gr/gal
Convert Gram per Oil barrel (g/bbl) to Grain per Gallon (gr/gal) using the exact conversion factor (1 gram per oil barrel = 0.3674371036 grain per gallon). See the formula, worked examples, and conversion table.
Grams 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 0.00628981077 / 0.01711806105.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Oil barrel to Grains per Gallon
Gram 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 = grams per oil barrel × 0.367437103641
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per oil barrel equals 0.00628981077043 base units, and 1 grain per gallon equals 0.0171180610453 base units, so dividing one by the other gives the direct gram per oil barrel-to-grain per gallon factor of 0.367437103641.
Simple example
1 g/bbl × 0.3674371036 = 0.3674371036 gr/gal
1 gram per oil barrel = 0.3674371036 grains per gallon.
Real-world example
1,000 g/bbl × 0.3674371036 = 367.4371036 gr/gal
1,000 grams per oil barrel = 367.4371036 grains per gallon.
Conversion table
| Gram per Oil barrel (g/bbl) | Grain per Gallon (gr/gal) |
|---|---|
| 0.1 g/bbl | 0.0367437104 gr/gal |
| 1 g/bbl | 0.3674371036 gr/gal |
| 10 g/bbl | 3.674371036 gr/gal |
| 100 g/bbl | 36.74371036 gr/gal |
| 1,000 g/bbl | 367.4371036 gr/gal |
| 10,000 g/bbl | 3,674.371036 gr/gal |
Reverse conversion: Grain per Gallon to Gram per Oil barrel
0.3674371036 gr/gal × 2.72155422 = 0.9999999999 g/bbl
0.3674371036 grains per gallon = 0.9999999999 grams per oil barrel.
grams per oil barrel = grains per gallon × 2.72155422
For a page dedicated to this direction, see Grain per Gallon to Gram per Oil barrel.
Understanding the Gram per Oil barrel (g/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 gram per oil barrel?
1 gram per oil barrel equals 0.3674371036 grains per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per oil barrel to grain per gallon?
Multiply the gram per oil barrel value by 0.3674371036. The converter above does this instantly to whatever precision you set.
How do I convert grain per gallon back to gram per oil barrel?
Use the reverse factor: 1 grain per gallon equals 2.72155422 grams per oil barrel. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per oil barrel?
Gram per Oil barrel (g/bbl) is a unit of density.
What is a grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
Is the gram per oil barrel to grain per gallon conversion exact?
Yes. Both gram per oil barrel and grain per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.3674371036 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.