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 511 fluid ounces into gallons we have to multiply 511 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

511 fl oz → V_(gal)

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

V_(gal) = 511 fl oz × 0.0078125 gal

V_(gal) = 3.9921875 gal

The final result is:

511 fl oz → 3.9921875 gal

We conclude that 511 fluid ounces is equivalent to 3.9921875 gallons:

511 fluid ounces = 3.9921875 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.25048923679061 × 511 fluid ounces.

Another way is saying that 511 fluid ounces is equal to 1 ÷ 0.25048923679061 gallons.

Approximate result

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

511 fl oz ≅ 3.992 gal

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