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 820 gallons into cubic feet we have to multiply 820 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

820 gal → V_(ft3)

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

V_(ft3) = 820 gal × 0.1336805555555 ft3

V_(ft3) = 109.61805555551 ft3

The final result is:

820 gal → 109.61805555551 ft3

We conclude that 820 gallons is equivalent to 109.61805555551 cubic feet:

820 gallons = 109.61805555551 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 0.0091225847323446 × 820 gallons.

Another way is saying that 820 gallons is equal to 1 ÷ 0.0091225847323446 cubic feet.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eight hundred twenty gallons is approximately one hundred nine point six one eight cubic feet:

820 gal ≅ 109.618 ft3

An alternative is also that one cubic foot is approximately zero point zero zero nine times eight hundred twenty 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