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 513 fluid ounces into gallons we have to multiply 513 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

513 fl oz → V_(gal)

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

V_(gal) = 513 fl oz × 0.0078125 gal

V_(gal) = 4.0078125 gal

The final result is:

513 fl oz → 4.0078125 gal

We conclude that 513 fluid ounces is equivalent to 4.0078125 gallons:

513 fluid ounces = 4.0078125 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.2495126705653 × 513 fluid ounces.

Another way is saying that 513 fluid ounces is equal to 1 ÷ 0.2495126705653 gallons.

Approximate result

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

513 fl oz ≅ 4.008 gal

An alternative is also that one gallon is approximately zero point two five times five hundred thirteen 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