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 4000 cubic inches into gallons we have to multiply 4000 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

4000 in3 → V_(gal)

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

V_(gal) = 4000 in3 × 0.0043290043290138 gal

V_(gal) = 17.316017316055 gal

The final result is:

4000 in3 → 17.316017316055 gal

We conclude that 4000 cubic inches is equivalent to 17.316017316055 gallons:

4000 cubic inches = 17.316017316055 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.057749999999873 × 4000 cubic inches.

Another way is saying that 4000 cubic inches is equal to 1 ÷ 0.057749999999873 gallons.

Approximate result

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

4000 in3 ≅ 17.316 gal

An alternative is also that one gallon is approximately zero point zero five eight times four thousand 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