Barrel (US) to Gallon (US) Converter
Unit Converter
Instant · Precise · Universal
47 units available
6 categories total
How to Convert Barrel (US) to Gallon (US)
To liters: multiply by 119.24. To US gallons: multiply by 31.5. To UK barrels: multiply by 0.729.
1 US barrel = 31.5 US gal = 119.24 L = 0.11924 m³ = 4,032 US fl oz.
For example, 1 Barrel (US) (bbl (US)) = 42 Gallon (US) (gal (US)).
Barrel (US) to Gallon (US) — Common Values
| Barrel (US) (bbl (US)) | Gallon (US) (gal (US)) |
|---|---|
| 0.1 | 4.2 |
| 0.5 | 21 |
| 1 | 42 |
| 2 | 84 |
| 5 | 210 |
| 10 | 420 |
| 25 | 1050 |
| 50 | 2100 |
| 100 | 4200 |
| 500 | 21000 |
| 1000 | 42000 |
About Barrel (US) (bbl (US))
Definition
The US barrel is a unit of volume equal to 31.5 US gallons (about 119.24 liters), used for various liquid commodities.
Mathematical Relationship
1 US barrel = 31.5 US gal = 119.24 L = 0.11924 m³ = 4,032 US fl oz.
Conversion Formula
To liters: multiply by 119.24. To US gallons: multiply by 31.5. To UK barrels: multiply by 0.729.
Practical Applications
Brewery production volumes, whiskey barrel aging, wine production, and bulk liquid commodity trading.
Interesting Facts
A bourbon whiskey barrel is 53 gallons (200 L), larger than the standard US liquid barrel. Barrel sizes vary by commodity and country.
Common Mistakes
Confusing the US liquid barrel (31.5 gal) with the petroleum barrel (42 gal). Always specify which barrel type.
Educational Tips
There are several different 'barrel' sizes. US liquid = 31.5 gal, US oil = 42 gal, UK = 36 imperial gal. Always specify!
About Gallon (US) (gal (US))
Definition
The US gallon is a unit of volume equal to 128 US fluid ounces, or approximately 3.785 liters, used for large liquid volumes.
Mathematical Relationship
1 US gal = 4 US qt = 8 US pt = 16 US cups = 128 US fl oz = 3.785411784 L.
Conversion Formula
To liters: multiply by 3.785. To UK gallons: multiply by 0.832674. To cubic meters: multiply by 0.003785.
Practical Applications
Fuel prices ($/gal), milk jugs, water cooler bottles, swimming pool chemicals, and paint quantities.
Interesting Facts
The US gallon is smaller than the UK gallon: 3.785 L vs. 4.546 L. This means UK fuel economy figures look better by number!
Common Mistakes
Confusing US and UK gallons — UK gallons are 20% larger. Fuel economy (mpg) differs significantly between the two systems.
Educational Tips
1 gallon ≈ 3.8 liters ≈ a large milk jug. 4 quarts = 1 gallon. A gallon of water weighs about 8.3 pounds.