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 3157 cubic inches into gallons we have to multiply 3157 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

3157 in3 → V_(gal)

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

V_(gal) = 3157 in3 × 0.0043290043290138 gal

V_(gal) = 13.666666666697 gal

The final result is:

3157 in3 → 13.666666666697 gal

We conclude that 3157 cubic inches is equivalent to 13.666666666697 gallons:

3157 cubic inches = 13.666666666697 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.073170731707157 × 3157 cubic inches.

Another way is saying that 3157 cubic inches is equal to 1 ÷ 0.073170731707157 gallons.

Approximate result

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

3157 in3 ≅ 13.667 gal

An alternative is also that one gallon is approximately zero point zero seven three times three thousand one hundred fifty-seven 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