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 871 cubic inches into gallons we have to multiply 871 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

871 in3 → V_(gal)

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

V_(gal) = 871 in3 × 0.0043290043290138 gal

V_(gal) = 3.770562770571 gal

The final result is:

871 in3 → 3.770562770571 gal

We conclude that 871 cubic inches is equivalent to 3.770562770571 gallons:

871 cubic inches = 3.770562770571 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.26521239954018 × 871 cubic inches.

Another way is saying that 871 cubic inches is equal to 1 ÷ 0.26521239954018 gallons.

Approximate result

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

871 in3 ≅ 3.771 gal

An alternative is also that one gallon is approximately zero point two six five times eight hundred seventy-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