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 3980 fluid ounces into gallons we have to multiply 3980 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

3980 fl oz → V_(gal)

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

V_(gal) = 3980 fl oz × 0.0078125 gal

V_(gal) = 31.09375 gal

The final result is:

3980 fl oz → 31.09375 gal

We conclude that 3980 fluid ounces is equivalent to 31.09375 gallons:

3980 fluid ounces = 31.09375 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.032160804020101 × 3980 fluid ounces.

Another way is saying that 3980 fluid ounces is equal to 1 ÷ 0.032160804020101 gallons.

Approximate result

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

3980 fl oz ≅ 31.094 gal

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