How many Cubic Inches are there in a US Liquid Gallon?

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How many Cubic Inches are there in a US Liquid Gallon?

What is 1gal in in³? Convert 1 US Liquid Gallon (1gal) to Cubic Inches (in³) and show formula, brief history on the units and quick maths for the conversion.

Enter US Liquid Gallons to convert to Cubic Inches

Result
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Swap Units (in³ → gal)
1gal = 231in³

Quick Reference for Converting US Liquid Gallons to Cubic Inches

Formula
in³ = gal x 231
Quick Rough Maths
To get the Cubic Inches, multiply the number of US Liquid Gallons by 231.0
US Liquid Gallons (gal) in 1 Cubic Inch
There are 0 US Liquid Gallons in 1 Cubic Inch
Cubic Inches (in³) in 1 US Liquid Gallon
There are 231 Cubic Inches 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.

Cubic Inch
/ˈkjuːbɪk ɪn(t)ʃ/
Symbol: in³
Unit System: Imperial

What is the Cubic Inch?

The cubic inch is a unit of volume derived from the imperial unit system and uses the symbol in³.

1 cubic inch is defined as equal to the volume of a cube with edges measuring 1 in. It is equivalent in volume to 16.387 ml, 1/231 US gallons and 1/1728 ft³.

Common uses for cubic inches include quantifying the size of electrical boxes and in the automotive industry for measuring engine displacement. The 5th generation Ford Mustang ran on a Boss 302 which was a 302 in³ engine (5.0L).


Conversion Tables for US Liquid Gallons (gal) to Cubic Inches (in³)