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 726 cubic inches into gallons we have to multiply 726 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

726 in3 → V_(gal)

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

V_(gal) = 726 in3 × 0.0043290043290138 gal

V_(gal) = 3.142857142864 gal

The final result is:

726 in3 → 3.142857142864 gal

We conclude that 726 cubic inches is equivalent to 3.142857142864 gallons:

726 cubic inches = 3.142857142864 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.31818181818112 × 726 cubic inches.

Another way is saying that 726 cubic inches is equal to 1 ÷ 0.31818181818112 gallons.

Approximate result

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

726 in3 ≅ 3.143 gal

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