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 402 fluid ounces into gallons we have to multiply 402 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

402 fl oz → V_(gal)

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

V_(gal) = 402 fl oz × 0.0078125 gal

V_(gal) = 3.140625 gal

The final result is:

402 fl oz → 3.140625 gal

We conclude that 402 fluid ounces is equivalent to 3.140625 gallons:

402 fluid ounces = 3.140625 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.318407960199 × 402 fluid ounces.

Another way is saying that 402 fluid ounces is equal to 1 ÷ 0.318407960199 gallons.

Approximate result

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

402 fl oz ≅ 3.141 gal

An alternative is also that one gallon is approximately zero point three one eight times four hundred two 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