Fluid Ounces to Gallons Conversion

Round:
Enter US Fluid Ounce
Enter US Gallon

How to convert fluid ounces (oz) to gallons?

1 Fluid ounce is equal to 0.0078125 gallon. To convert fluid oz to gallons, multiply the fluid oz value by 0.0078125 or divide by 128.

For example, to convert 64 fluid ounces to gallons, divide 64 by 128, that makes 0.5 gallon is equal to 64 fluid ounces.

US fluid oz to gallons formula

gallon = fl oz * 0.0078125

gallon = fl oz / 128

1 US Fluid Ounce = 0.0078125 US Fluid Gallon

To convert between US and UK fluid ounces, please use fluid ounces conversion calculator tool.

What is a Fluid Ounce?

Fluid ounce is an imperial and United States Customary measurement systems volume unit. 1 US fluid ounce = 0.0078125 US fluid gallon. 1 Imperial fluid ounce = 0.00625 Imperial gallon. The symbol is "fl oz".

  • 1 US fluid ounce = 0.0078125 US fluid gallon
  • 1 Imperial fluid ounce = 0.00625 Imperial gallon

Common conversions from US fluid oz to gallons

  • 16 fl oz = 0.125 gallon
  • 24 fl oz = 0.1875 gallon
  • 32 fl oz = 1/4 gallon
  • 64 fl oz = 1/2 gallon
  • 96 fl oz = 3/4 gallon
  • 128 fl oz = 1 gallon

You may also use volume units conversion to convert all volume units.

Create Conversion Table
Click "Create Table". Enter a "Start" value (5, 100 etc). Select an "Increment" value (0.01, 5 etc) and select "Accuracy" to round the result.