US gallon to US fluid ounce converter (gal to floz)

You can provide values below to convert US gallon to US fluid ounce (gal to floz) or you can reverse the conversion.

Value to convert

Result

How to Convert US Gallon to US Fluid Ounce

1 gal = 128.000 floz

Understand the base relationship:
1 US Gallon = 0.003785 cubic meters
1 US Fluid Ounce = 2.96e-5 cubic meters
Establish the conversion factor:
1 gal = (0.003785 m³) / (2.96e-5 m³/floz) = 128.000 floz
Apply the conversion:
Multiply the value in gal by 128.000 to get the equivalent in floz

Convert 5 gal to floz:

5 gal × 128.000 = 640.000 floz