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 4021 cubic inches into gallons we have to multiply 4021 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

4021 in3 → V_(gal)

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

V_(gal) = 4021 in3 × 0.0043290043290138 gal

V_(gal) = 17.406926406965 gal

The final result is:

4021 in3 → 17.406926406965 gal

We conclude that 4021 cubic inches is equivalent to 17.406926406965 gallons:

4021 cubic inches = 17.406926406965 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.057448395921287 × 4021 cubic inches.

Another way is saying that 4021 cubic inches is equal to 1 ÷ 0.057448395921287 gallons.

Approximate result

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

4021 in3 ≅ 17.407 gal

An alternative is also that one gallon is approximately zero point zero five seven times four thousand twenty-one 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