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 988.5 cubic inches into gallons we have to multiply 988.5 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

988.5 in3 → V_(gal)

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

V_(gal) = 988.5 in3 × 0.0043290043290138 gal

V_(gal) = 4.2792207792302 gal

The final result is:

988.5 in3 → 4.2792207792302 gal

We conclude that 988.5 cubic inches is equivalent to 4.2792207792302 gallons:

988.5 cubic inches = 4.2792207792302 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.23368740515882 × 988.5 cubic inches.

Another way is saying that 988.5 cubic inches is equal to 1 ÷ 0.23368740515882 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that nine hundred eighty-eight point five cubic inches is approximately four point two seven nine gallons:

988.5 in3 ≅ 4.279 gal

An alternative is also that one gallon is approximately zero point two three four times nine hundred eighty-eight point five 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