Gallon (US) to Fluid Ounce
Use our volume converter to convert Gallon (US) to Fluid Ounce instantly. Enter a value and get the exact equivalent.
1 Gallon (US) equals approximately 128 Fluid Ounce.
128.0000676
1 Gallon (US) (gal (US)) = 128.0000676 Fluid Ounce (fl oz)