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 400 gallons into cubic feet we have to multiply 400 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

400 gal → V_(ft3)

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

V_(ft3) = 400 gal × 0.1336805555555 ft3

V_(ft3) = 53.4722222222 ft3

The final result is:

400 gal → 53.4722222222 ft3

We conclude that 400 gallons is equivalent to 53.4722222222 cubic feet:

400 gallons = 53.4722222222 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 0.018701298701306 × 400 gallons.

Another way is saying that 400 gallons is equal to 1 ÷ 0.018701298701306 cubic feet.

Approximate result

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

400 gal ≅ 53.472 ft3

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