Conversion formula

The conversion factor from cubic feet to gallons is 7.4805194805226, which means that 1 cubic foot is equal to 7.4805194805226 gallons:

1 ft3 = 7.4805194805226 gal

To convert 1638 cubic feet into gallons we have to multiply 1638 by the conversion factor in order to get the volume amount from cubic feet to gallons. We can also form a simple proportion to calculate the result:

1 ft3 → 7.4805194805226 gal

1638 ft3 → V_(gal)

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

V_(gal) = 1638 ft3 × 7.4805194805226 gal

V_(gal) = 12253.090909096 gal

The final result is:

1638 ft3 → 12253.090909096 gal

We conclude that 1638 cubic feet is equivalent to 12253.090909096 gallons:

1638 cubic feet = 12253.090909096 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 8.1612060778694E-5 × 1638 cubic feet.

Another way is saying that 1638 cubic feet is equal to 1 ÷ 8.1612060778694E-5 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one thousand six hundred thirty-eight cubic feet is approximately twelve thousand two hundred fifty-three point zero nine one gallons:

1638 ft3 ≅ 12253.091 gal

An alternative is also that one gallon is approximately zero times one thousand six hundred thirty-eight cubic feet.

Conversion table

cubic feet to gallons chart

For quick reference purposes, below is the conversion table you can use to convert from cubic feet to gallons