## Conversion formula

The conversion factor from gallons to fluid ounces is 128, which means that 1 gallon is equal to 128 fluid ounces:

1 gal = 128 fl oz

To convert 2 gallons into fluid ounces we have to multiply 2 by the conversion factor in order to get the volume amount from gallons to fluid ounces. We can also form a simple proportion to calculate the result:

1 gal → 128 fl oz

2 gal → V(fl oz)

Solve the above proportion to obtain the volume V in fluid ounces:

V(fl oz) = 2 gal × 128 fl oz

V(fl oz) = 256 fl oz

The final result is:

2 gal → 256 fl oz

We conclude that 2 gallons is equivalent to 256 fluid ounces:

2 gallons = 256 fluid ounces

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 fluid ounce is equal to 0.00390625 × 2 gallons.

Another way is saying that 2 gallons is equal to 1 ÷ 0.00390625 fluid ounces.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that two gallons is approximately two hundred fifty-six fluid ounces:

2 gal ≅ 256 fl oz

An alternative is also that one fluid ounce is approximately zero point zero zero four times two gallons.

## Conversion table

### gallons to fluid ounces chart

For quick reference purposes, below is the conversion table you can use to convert from gallons to fluid ounces

gallons (gal) fluid ounces (fl oz)
3 gallons 384 fluid ounces
4 gallons 512 fluid ounces
5 gallons 640 fluid ounces
6 gallons 768 fluid ounces
7 gallons 896 fluid ounces
8 gallons 1024 fluid ounces
9 gallons 1152 fluid ounces
10 gallons 1280 fluid ounces
11 gallons 1408 fluid ounces
12 gallons 1536 fluid ounces