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 840 cubic feet into gallons we have to multiply 840 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

840 ft3 → V_(gal)

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

V_(gal) = 840 ft3 × 7.4805194805226 gal

V_(gal) = 6283.636363639 gal

The final result is:

840 ft3 → 6283.636363639 gal

We conclude that 840 cubic feet is equivalent to 6283.636363639 gallons:

840 cubic feet = 6283.636363639 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.00015914351851845 × 840 cubic feet.

Another way is saying that 840 cubic feet is equal to 1 ÷ 0.00015914351851845 gallons.

Approximate result

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

840 ft3 ≅ 6283.636 gal

An alternative is also that one gallon is approximately zero times eight hundred forty 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