Convert Oil Barrels to Imperial Gallons
Convert Oil Barrels (bbl) to Imperial Gallons (UK gal) instantly and accurately.
Conversion Formula
UK gal = bbl × 34.97231575
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 Imperial Gallons
A US imperial gallon (UK gal) = exactly 8 imperial pints or 10 lb of pure water at 62°F ≈ 4.546 L - about 20% larger than the US liquid gallon (3.785 L). The weight-based definition made it verifiable with simple scales. Still the legal fuel measure in the Cayman Islands and other British Overseas Territories. UK mpg ratings use imperial gallons: 50 UK mpg ≈ 42 US mpg. 1 UK gal ≈ 4.546 L.
Quick Reference Table
| Oil Barrels (bbl) | Imperial Gallons (UK gal) |
|---|---|
| 1 bbl | 34.9723 UK gal |
| 2 bbl | 69.9446 UK gal |
| 5 bbl | 174.862 UK gal |
| 10 bbl | 349.723 UK gal |
| 25 bbl | 874.308 UK gal |
| 50 bbl | 1748.62 UK gal |
| 100 bbl | 3497.23 UK gal |