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 668 cubic feet into gallons we have to multiply 668 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

668 ft3 → V_(gal)

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

V_(gal) = 668 ft3 × 7.4805194805226 gal

V_(gal) = 4996.9870129891 gal

The final result is:

668 ft3 → 4996.9870129891 gal

We conclude that 668 cubic feet is equivalent to 4996.9870129891 gallons:

668 cubic feet = 4996.9870129891 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.00020012059214895 × 668 cubic feet.

Another way is saying that 668 cubic feet is equal to 1 ÷ 0.00020012059214895 gallons.

Approximate result

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

668 ft3 ≅ 4996.987 gal

An alternative is also that one gallon is approximately zero times six hundred sixty-eight 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