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Convert US gallons to oil barrels instantly with our free online converter.
Barrels = Gallons ÷ 42
1 oil barrel = 42 US gallons
| US Gallons | Barrels |
|---|---|
| 42 | 1 |
| 84 | 2 |
| 210 | 5 |
| 420 | 10 |
| 840 | 20 |
| 2,100 | 50 |
| 4,200 | 100 |
| 8,400 | 200 |
| 21,000 | 500 |
| 42,000 | 1,000 |
| 84,000 | 2,000 |
| 420,000 | 10,000 |
A US gallon is the standard unit of liquid volume in the United States customary system. Defined as exactly 231 cubic inches, it equals approximately 3.785 liters. The gallon is extensively used for measuring fuel, beverages, milk, and other liquids in everyday American life. It's divided into smaller units including quarts, pints, cups, and fluid ounces. The US gallon should not be confused with the larger Imperial gallon used in the UK and Commonwealth countries.
An oil barrel, standardized at 42 US gallons, is the fundamental unit of measurement in the global petroleum industry. Established in the 1870s during the Pennsylvania oil boom, this measurement has remained constant for over 150 years. While physical barrels are rarely used today, the unit persists as the standard for crude oil pricing, trading, production quotas, and reserves reporting worldwide. One barrel equals approximately 159 liters or 158.987 cubic liters.
One US gallon equals approximately 0.02381 barrels (1 ÷ 42). Conversely, one barrel equals 42 gallons.
The barrel became the industry standard in the 1860s and has persisted due to tradition and the interconnected nature of global oil markets. Changing the standard would be extremely costly and disruptive.
Divide the number of gallons by 42. For quick mental math, remember that 420 gallons = 10 barrels, or 4,200 gallons = 100 barrels.
No. An oil barrel is 42 gallons, but a beer barrel is 31 gallons, and wine barrels vary. Always specify which type of barrel you're using.
One oil barrel equals approximately 159 liters. Since 1 gallon = 3.785 liters: 42 gallons × 3.785 = 158.97 liters.
"bbl" is the abbreviation for barrel in the oil industry. The double "b" originally stood for "blue barrel," referring to the blue barrels used by Standard Oil.