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 1290 fluid ounces into gallons we have to multiply 1290 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

1290 fl oz → V_(gal)

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

V_(gal) = 1290 fl oz × 0.0078125 gal

V_(gal) = 10.078125 gal

The final result is:

1290 fl oz → 10.078125 gal

We conclude that 1290 fluid ounces is equivalent to 10.078125 gallons:

1290 fluid ounces = 10.078125 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.09922480620155 × 1290 fluid ounces.

Another way is saying that 1290 fluid ounces is equal to 1 ÷ 0.09922480620155 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one thousand two hundred ninety fluid ounces is approximately ten point zero seven eight gallons:

1290 fl oz ≅ 10.078 gal

An alternative is also that one gallon is approximately zero point zero nine nine times one thousand two hundred ninety 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