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 3421 cubic inches into gallons we have to multiply 3421 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

3421 in3 → V_(gal)

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

V_(gal) = 3421 in3 × 0.0043290043290138 gal

V_(gal) = 14.809523809556 gal

The final result is:

3421 in3 → 14.809523809556 gal

We conclude that 3421 cubic inches is equivalent to 14.809523809556 gallons:

3421 cubic inches = 14.809523809556 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.067524115755479 × 3421 cubic inches.

Another way is saying that 3421 cubic inches is equal to 1 ÷ 0.067524115755479 gallons.

Approximate result

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

3421 in3 ≅ 14.81 gal

An alternative is also that one gallon is approximately zero point zero six eight times three thousand four hundred 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