How many gallons are in one barrel of oil?

One barrel of oil is equal to 42 US liquid gallons, which is the standard used by the converter.

Can I convert barrels to metric units like litres or cubic metres?

Yes, the tool shows the equivalent volume in litres, hectolitres, cubic metres, and other metric units alongside the gallon result.

Is the converter free to use without signing up?

The Barrel volume converter on Convertworld is a free, browser-based tool that requires no subscription or account.

Does the tool handle US dry gallons or only US liquid gallons?

The conversion defaults to US liquid gallons; the page lists both liquid and dry measure units, but the primary output uses the liquid gallon standard.

Volume ConversionTool Review

Barrel Oil to Gallons Converter

Provided byConvertworldconvertworld.com

The Barrel volume converter lets you convert barrel values directly into gallons and many other volume units on the s...

One of 5 options for Barrel Oil to Gallons Converter

Use This Tool

Screenshot of Barrel Oil to Gallons Converter on Convertworld — convertworld.comOpen the live tool →

About this tool

What Barrel Oil to Gallons Converter does

The Barrel Oil to Gallons Converter on Convertworld lets users instantly convert any quantity of oil barrels into US liquid gallons. Enter a barrel value and the tool returns the equivalent gallon amount, along with a full list of other volume units such as litres, quarts, and cubic metres. The conversion is based on the standard that one oil barrel equals 42 US gallons, making it suitable for petroleum, crude oil, and related products. Convertworld’s version stands out because the conversion table on the page displays the barrel unit alongside metric, U.S. liquid, U.S. dry, British imperial, Japanese, and cooking units all at once. While other barrel-to-gallon converters focus on a single output, this site presents a comprehensive multi-unit table right below the input field, letting users see how the same volume translates across different measurement systems without leaving the page.

Step by step

How to use the Convertworld Barrel Oil to Gallons Converter

1
Open the Barrel volume converter on Convertworld
2
Enter the number of barrels you want to convert in the input field
3
View the immediate gallon result displayed alongside other unit equivalents
4
Use the full table to compare the volume in litres, quarts, cubic metres, or other units as needed

Is it right for you

Best for

Ideal for petroleum industry workers, students, or anyone needing quick, accurate barrel-to-gallon conversions along with a broad view of how that volume compares across metric, U.S., and imperial units.

Limitations

No option to switch between US dry and US liquid gallon definitions
Conversion results are estimates based on the standard 42-gallon barrel
Page contains many unrelated unit listings that can be visually overwhelming

Questions

Barrel Oil to Gallons Converter FAQ

How many gallons are in one barrel of oil?: One barrel of oil is equal to 42 US liquid gallons, which is the standard used by the converter.
Can I convert barrels to metric units like litres or cubic metres?: Yes, the tool shows the equivalent volume in litres, hectolitres, cubic metres, and other metric units alongside the gallon result.
Is the converter free to use without signing up?: The Barrel volume converter on Convertworld is a free, browser-based tool that requires no subscription or account.
Does the tool handle US dry gallons or only US liquid gallons?: The conversion defaults to US liquid gallons; the page lists both liquid and dry measure units, but the primary output uses the liquid gallon standard.

Other Options

More Barrel Oil to Gallons Converter tools

Compare all →