Conversion formula

The conversion factor from fluid ounces to cubic feet is 0.0010443793402773, which means that 1 fluid ounce is equal to 0.0010443793402773 cubic feet:

1 fl oz = 0.0010443793402773 ft3

To convert 638 fluid ounces into cubic feet we have to multiply 638 by the conversion factor in order to get the volume amount from fluid ounces to cubic feet. We can also form a simple proportion to calculate the result:

1 fl oz → 0.0010443793402773 ft3

638 fl oz → V_(ft3)

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

V_(ft3) = 638 fl oz × 0.0010443793402773 ft3

V_(ft3) = 0.66631401909695 ft3

The final result is:

638 fl oz → 0.66631401909695 ft3

We conclude that 638 fluid ounces is equivalent to 0.66631401909695 cubic feet:

638 fluid ounces = 0.66631401909695 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 1.50079387697 × 638 fluid ounces.

Another way is saying that 638 fluid ounces is equal to 1 ÷ 1.50079387697 cubic feet.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred thirty-eight fluid ounces is approximately zero point six six six cubic feet:

638 fl oz ≅ 0.666 ft3

An alternative is also that one cubic foot is approximately one point five zero one times six hundred thirty-eight fluid ounces.

Conversion table

fluid ounces to cubic feet chart

For quick reference purposes, below is the conversion table you can use to convert from fluid ounces to cubic feet