Conversion formula

The conversion factor from gallons to cubic feet is 0.1336805555555, which means that 1 gallon is equal to 0.1336805555555 cubic feet:

1 gal = 0.1336805555555 ft3

To convert 999 gallons into cubic feet we have to multiply 999 by the conversion factor in order to get the volume amount from gallons to cubic feet. We can also form a simple proportion to calculate the result:

1 gal → 0.1336805555555 ft3

999 gal → V_(ft3)

Solve the above proportion to obtain the volume V in cubic feet:

V_(ft3) = 999 gal × 0.1336805555555 ft3

V_(ft3) = 133.54687499994 ft3

The final result is:

999 gal → 133.54687499994 ft3

We conclude that 999 gallons is equivalent to 133.54687499994 cubic feet:

999 gallons = 133.54687499994 cubic feet

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cubic foot is equal to 0.0074880074880106 × 999 gallons.

Another way is saying that 999 gallons is equal to 1 ÷ 0.0074880074880106 cubic feet.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that nine hundred ninety-nine gallons is approximately one hundred thirty-three point five four seven cubic feet:

999 gal ≅ 133.547 ft3

An alternative is also that one cubic foot is approximately zero point zero zero seven times nine hundred ninety-nine gallons.

Conversion table

gallons to cubic feet chart

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