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 1389 fluid ounces into gallons we have to multiply 1389 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

1389 fl oz → V_(gal)

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

V_(gal) = 1389 fl oz × 0.0078125 gal

V_(gal) = 10.8515625 gal

The final result is:

1389 fl oz → 10.8515625 gal

We conclude that 1389 fluid ounces is equivalent to 10.8515625 gallons:

1389 fluid ounces = 10.8515625 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.092152627789777 × 1389 fluid ounces.

Another way is saying that 1389 fluid ounces is equal to 1 ÷ 0.092152627789777 gallons.

Approximate result

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

1389 fl oz ≅ 10.852 gal

An alternative is also that one gallon is approximately zero point zero nine two times one thousand three hundred eighty-nine 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