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 723 cubic inches into gallons we have to multiply 723 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

723 in3 → V_(gal)

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

V_(gal) = 723 in3 × 0.0043290043290138 gal

V_(gal) = 3.129870129877 gal

The final result is:

723 in3 → 3.129870129877 gal

We conclude that 723 cubic inches is equivalent to 3.129870129877 gallons:

723 cubic inches = 3.129870129877 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.3195020746881 × 723 cubic inches.

Another way is saying that 723 cubic inches is equal to 1 ÷ 0.3195020746881 gallons.

Approximate result

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

723 in3 ≅ 3.13 gal

An alternative is also that one gallon is approximately zero point three two times seven hundred twenty-three 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