An oil barrel is 42 US gallons.
Oil barrels to Cubic Megameters Converter — bbl to Mm3
Convert Oil barrel (bbl) to Cubic Megameter (Mm3) using the exact conversion factor (1 oil barrel = 1.589873e-19 cubic megameter). See the formula, worked examples, and conversion table.
Oil barrels to Cubic Megameters converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
Cubic metric volume unit.
Result = input x 0.1589872949 / 1e+18.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Oil barrels to Cubic Megameters
Oil barrel and Cubic Megameter appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Specifically: An oil barrel is 42 US gallons, and cubic metric volume unit.
Formula
cubic megameters = oil barrels × 1.589873e-19
This factor comes from each unit's defined relationship to the category's base unit: 1 oil barrel equals 0.158987294928 base units, and 1 cubic megameter equals 1e+18 base units, so dividing one by the other gives the direct oil barrel-to-cubic megameter factor of 1.589873e-19.
Simple example
1 bbl × 1.589873e-19 = 1.589873e-19 Mm3
1 oil barrel = 1.589873e-19 cubic megameters.
Real-world example
10 bbl × 1.589873e-19 = 1.589873e-18 Mm3
10 oil barrels = 1.589873e-18 cubic megameters.
Conversion table
| Oil barrel (bbl) | Cubic Megameter (Mm3) |
|---|---|
| 1 bbl | 1.589873e-19 Mm3 |
| 5 bbl | 7.949365e-19 Mm3 |
| 10 bbl | 1.589873e-18 Mm3 |
| 25 bbl | 3.974682e-18 Mm3 |
| 50 bbl | 7.949365e-18 Mm3 |
| 100 bbl | 1.589873e-17 Mm3 |
Reverse conversion: Cubic Megameter to Oil barrel
1.589873e-19 Mm3 × 6.289811e+18 = 1.000000032 bbl
1.589873e-19 cubic megameters = 1.000000032 oil barrels.
oil barrels = cubic megameters × 6.289811e+18
For a page dedicated to this direction, see Cubic Megameter to Oil barrel.
Understanding the Oil barrel (bbl)
An oil barrel is 42 US gallons.
Understanding the Cubic Megameter (Mm3)
Cubic metric volume unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic megameters are in 1 oil barrel?
1 oil barrel equals 1.589873e-19 cubic megameters, using the exact defined conversion factor rather than an estimate.
How do I convert oil barrel to cubic megameter?
Multiply the oil barrel value by 1.589873e-19. The converter above does this instantly to whatever precision you set.
How do I convert cubic megameter back to oil barrel?
Use the reverse factor: 1 cubic megameter equals 6.289811e+18 oil barrels. You can also use the swap control in the converter above to flip the direction instantly.
What is a oil barrel?
Oil barrel (bbl) is a unit of volume.
What is a cubic megameter?
Cubic Megameter (Mm3) is a unit of volume.
Is the oil barrel to cubic megameter conversion exact?
Yes. Both oil barrel and cubic megameter are defined by fixed standards rather than physical artifacts, so the factor of 1.589873e-19 used above is exact to as many digits as you choose to display.