Finance Tools
Barrel to Gallon Conversion Calculator
Convert between barrels and gallons using a configurable conversion factor (default: 42 US gallons per barrel).
Convert between barrels and gallons. Standard crude oil conversion is 42 US gallons per barrel, but you can adjust it if you need.
Conversion direction
Pick the direction that matches the unit you have.
Enter the amount you want to convert.
Default is 42 gal/bbl (US petroleum barrel).
Using 42.0000 gal/bbl
420.0000 gallons
Formula: gallons = barrels × gallons_per_barrel
How to use this barrel to gallon conversion calculator
- Choose conversion direction (barrels → gallons or gallons → barrels).
- Enter the amount you want to convert.
- Optionally adjust gallons per barrel (default 42).
- Review the converted result and the formula used.
Example
If you convert 10 barrels to gallons using 42 gal/bbl:
- Gallons = 10 × 42 = 420 gal
- Reverse: Barrels = 420 ÷ 42 = 10 bbl
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