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 815 fluid ounces into gallons we have to multiply 815 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

815 fl oz → V_(gal)

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

V_(gal) = 815 fl oz × 0.0078125 gal

V_(gal) = 6.3671875 gal

The final result is:

815 fl oz → 6.3671875 gal

We conclude that 815 fluid ounces is equivalent to 6.3671875 gallons:

815 fluid ounces = 6.3671875 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.15705521472393 × 815 fluid ounces.

Another way is saying that 815 fluid ounces is equal to 1 ÷ 0.15705521472393 gallons.

Approximate result

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

815 fl oz ≅ 6.367 gal

An alternative is also that one gallon is approximately zero point one five seven times eight hundred fifteen 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