Convert Oil Barrels to Gallons
Convert Oil Barrels (bbl) to Gallons (gal) instantly and accurately.
Conversion Formula
gal = bbl × 42
About Oil Barrels
An oil barrel (bbl) = exactly 42 US gallons ≈ 158.99 L - established by the Pennsylvania oil industry in the 1860s and now the global petroleum standard. Global oil production, OPEC quotas, and crude spot prices are all quoted in barrels or Mb/d (millions of barrels per day); world consumption ~100 Mb/d in 2024. 'Bbl' derives from the 'blue barrel' mark on petroleum containers. 1 bbl = 42 US gal ≈ 159 L.
About Gallons
A US gallon (gal) = 4 quarts = 128 fl oz ≈ 3.785 L. Gasoline, milk, water, paint, and pesticides are sold by the gallon in the US. About 20% smaller than the UK imperial gallon (4.546 L) - a critical difference when comparing fuel economy across the Atlantic. 1 US gal = 3.785 L = 4 qt = 128 fl oz.
Quick Reference Table
| Oil Barrels (bbl) | Gallons (gal) |
|---|---|
| 1 bbl | 42 gal |
| 2 bbl | 84 gal |
| 5 bbl | 210 gal |
| 10 bbl | 420 gal |
| 25 bbl | 1050 gal |
| 50 bbl | 2100 gal |
| 100 bbl | 4200 gal |