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 840 fluid ounces into gallons we have to multiply 840 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

840 fl oz → V_(gal)

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

V_(gal) = 840 fl oz × 0.0078125 gal

V_(gal) = 6.5625 gal

The final result is:

840 fl oz → 6.5625 gal

We conclude that 840 fluid ounces is equivalent to 6.5625 gallons:

840 fluid ounces = 6.5625 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.15238095238095 × 840 fluid ounces.

Another way is saying that 840 fluid ounces is equal to 1 ÷ 0.15238095238095 gallons.

Approximate result

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

840 fl oz ≅ 6.563 gal

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