gallon to fluid ounce Converter

gal = fl oz

One gallon equals 128 fluid ounces. To convert gallons to fluid ounces, multiply the value by 128.

Handy tools for this on Amazon
Beaker set →Glass liquid measuring cup →Adjustable measuring spoon →

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Common conversions

1 gal128 fl oz
5 gal640 fl oz
10 gal1280 fl oz
20 gal2560 fl oz
50 gal6400 fl oz
100 gal12800 fl oz