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 686 fluid ounces into gallons we have to multiply 686 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

686 fl oz → V_(gal)

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

V_(gal) = 686 fl oz × 0.0078125 gal

V_(gal) = 5.359375 gal

The final result is:

686 fl oz → 5.359375 gal

We conclude that 686 fluid ounces is equivalent to 5.359375 gallons:

686 fluid ounces = 5.359375 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.1865889212828 × 686 fluid ounces.

Another way is saying that 686 fluid ounces is equal to 1 ÷ 0.1865889212828 gallons.

Approximate result

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

686 fl oz ≅ 5.359 gal

An alternative is also that one gallon is approximately zero point one eight seven times six hundred eighty-six 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