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 1620 fluid ounces into gallons we have to multiply 1620 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

1620 fl oz → V_(gal)

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

V_(gal) = 1620 fl oz × 0.0078125 gal

V_(gal) = 12.65625 gal

The final result is:

1620 fl oz → 12.65625 gal

We conclude that 1620 fluid ounces is equivalent to 12.65625 gallons:

1620 fluid ounces = 12.65625 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.079012345679012 × 1620 fluid ounces.

Another way is saying that 1620 fluid ounces is equal to 1 ÷ 0.079012345679012 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one thousand six hundred twenty fluid ounces is approximately twelve point six five six gallons:

1620 fl oz ≅ 12.656 gal

An alternative is also that one gallon is approximately zero point zero seven nine times one thousand six hundred twenty 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