Conversion formula

The conversion factor from fluid ounces to gallons is 0.0078125, which means that 1 fluid ounce is equal to 0.0078125 gallons:

1 fl oz = 0.0078125 gal

To convert 648 fluid ounces into gallons we have to multiply 648 by the conversion factor in order to get the volume amount from fluid ounces to gallons. We can also form a simple proportion to calculate the result:

1 fl oz → 0.0078125 gal

648 fl oz → V_(gal)

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

V_(gal) = 648 fl oz × 0.0078125 gal

V_(gal) = 5.0625 gal

The final result is:

648 fl oz → 5.0625 gal

We conclude that 648 fluid ounces is equivalent to 5.0625 gallons:

648 fluid ounces = 5.0625 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.19753086419753 × 648 fluid ounces.

Another way is saying that 648 fluid ounces is equal to 1 ÷ 0.19753086419753 gallons.

Approximate result

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

648 fl oz ≅ 5.063 gal

An alternative is also that one gallon is approximately zero point one nine eight times six hundred forty-eight fluid ounces.

Conversion table

fluid ounces to gallons chart

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