Conversion formula

The conversion factor from cubic inches to gallons is 0.0043290043290138, which means that 1 cubic inch is equal to 0.0043290043290138 gallons:

1 in3 = 0.0043290043290138 gal

To convert 324.5 cubic inches into gallons we have to multiply 324.5 by the conversion factor in order to get the volume amount from cubic inches to gallons. We can also form a simple proportion to calculate the result:

1 in3 → 0.0043290043290138 gal

324.5 in3 → V_(gal)

Solve the above proportion to obtain the volume V in gallons:

V_(gal) = 324.5 in3 × 0.0043290043290138 gal

V_(gal) = 1.404761904765 gal

The final result is:

324.5 in3 → 1.404761904765 gal

We conclude that 324.5 cubic inches is equivalent to 1.404761904765 gallons:

324.5 cubic inches = 1.404761904765 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.7118644067781 × 324.5 cubic inches.

Another way is saying that 324.5 cubic inches is equal to 1 ÷ 0.7118644067781 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that three hundred twenty-four point five cubic inches is approximately one point four zero five gallons:

324.5 in3 ≅ 1.405 gal

An alternative is also that one gallon is approximately zero point seven one two times three hundred twenty-four point five cubic inches.

Conversion table

cubic inches to gallons chart

For quick reference purposes, below is the conversion table you can use to convert from cubic inches to gallons