Convert US Liquid Gallons (gal) to Barrels (bbl) | gal in bbl

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Let's convert US Liquid Gallons (gal) to Barrels (bbl)

This quick and easy calculator will convert US Liquid Gallons (gal) to Barrels (bbl) and show formula, brief history on the units and quick maths for the conversion.

Enter US Liquid Gallons to convert to Barrels


Quick Reference for Converting US Liquid Gallons to Barrels

Formula
bbl = gal / 42
Quick Rough Maths
To get the Barrels, divide the number of US Liquid Gallons by 42.0
US Liquid Gallons (gal) in 1 Barrel
There are 42 US Liquid Gallons in 1 Barrel
Barrels (bbl) in 1 US Liquid Gallon
There are 0.02 Barrels in 1 US Liquid Gallon

Unit Information

US Liquid Gallon
/ˈlɪkwɪdˈɡalən/
Symbol: gal
Unit System: US Customary

What is the US Liquid Gallon?

The liquid gallon is a unit of volume in the US customary unit system and uses the symbol gal.

It is the most common use of the word gallon and is defined as 231 in³. It is made up of 4 quarts where there are 2 pints in a quart and 16 US fluid ounces in a US pint. There are therefore 128 US fluid ounces in a US gallon.

The term gallon is most prevalent when discussing and trading oil and fuel. To ensure consistency, the temperature of the liquid (typically petroleum or alcohol) is understood to be 15.6 °C (60 °F) at the time of measurement.

Barrel
/ˈbar(ə)l/
Symbol: bbl
Unit System: US Customary

What is the Barrel?

The barrel is a unit of volume used in the oil industry with the symbol bbl.

Oil is more commonly expressed in terms of cubic metres (m³) but in the US and in the economic world (mainly because such a large percentage of the world's oil is shipped to the US) as barrels.

The measurement of the barrel originated in the US at the first oil well in Pennsylvania. There were so many variants of barrel size (including those used for wine and other goods) that the distrust became so prevalent a central and standard barrel size was created. This was finally established in 1872 as 42 US gallons.


Conversion Tables for US Liquid Gallons (gal) to Barrels (bbl)