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 509 gallons into cubic feet we have to multiply 509 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

509 gal → V_(ft3)

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

V_(ft3) = 509 gal × 0.1336805555555 ft3

V_(ft3) = 68.04340277775 ft3

The final result is:

509 gal → 68.04340277775 ft3

We conclude that 509 gallons is equivalent to 68.04340277775 cubic feet:

509 gallons = 68.04340277775 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 0.01469650192637 × 509 gallons.

Another way is saying that 509 gallons is equal to 1 ÷ 0.01469650192637 cubic feet.

Approximate result

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

509 gal ≅ 68.043 ft3

An alternative is also that one cubic foot is approximately zero point zero one five times five hundred 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