Convert Gallons to Oil Barrels
Convert Gallons (gal) to Oil Barrels (bbl) instantly and accurately.
Conversion Formula
bbl = gal × 0.02380952381
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.
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.
Quick Reference Table
| Gallons (gal) | Oil Barrels (bbl) |
|---|---|
| 1 gal | 0.0238095 bbl |
| 2 gal | 0.047619 bbl |
| 5 gal | 0.119048 bbl |
| 10 gal | 0.238095 bbl |
| 25 gal | 0.595238 bbl |
| 50 gal | 1.19048 bbl |
| 100 gal | 2.38095 bbl |