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 42.9 cubic inches into gallons we have to multiply 42.9 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

42.9 in3 → V_(gal)

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

V_(gal) = 42.9 in3 × 0.0043290043290138 gal

V_(gal) = 0.18571428571469 gal

The final result is:

42.9 in3 → 0.18571428571469 gal

We conclude that 42.9 cubic inches is equivalent to 0.18571428571469 gallons:

42.9 cubic inches = 0.18571428571469 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 5.3846153846036 × 42.9 cubic inches.

Another way is saying that 42.9 cubic inches is equal to 1 ÷ 5.3846153846036 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that forty-two point nine cubic inches is approximately zero point one eight six gallons:

42.9 in3 ≅ 0.186 gal

An alternative is also that one gallon is approximately five point three eight five times forty-two point nine 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