Gallons to Ounces (How many ounces in a gallon?)

This is a conversion calculator that is used to convert the volume in gallons (gal) to the volume of fluid ounces (fl. Oz). It is programmed with a single control button and a blank text field. Use the blank text field to enter the value in gallons. The ‘Convert button is used to convert the value in gallons to ounces. The conversion result is shown in the bottom platform of the calculator in fluid ounces.


Convert 0.34 gallons to fluid ounces


When using the calculator, enter the value in gallons (0.34) in the blank text field. Press the ‘Convert button to execute the conversion from gallons to ounces. The result is displayed as;

0.34 Gallon = 43.52 Fluid Ounces

This means that there are 43.52 fluid ounces at 0.34 gallon. This converter uses a simple procedure when converting new values from gallons to ounces.

Gallons to Fluid Ounces Conversion

How many ounces in a gallon?

The volume units conversion factor of gallons to ounces is 128.

1 Gallon (Fluid, US) = 128 Ounces (Fluid, US)

1 Gallon (Dry, US) = 148.94684 Ounces (Fluid, US)

1 Gallon (UK) = 160 Ounces (UK)

This means that there are 128 fluid ounces in one gallon if you were converting using the US standard. Multiply the value of gallons with the conversion factor to determine the number of fluid ounces in a gallon.

There are 8 fluid ounces in a cup, 2 cups in a pint, 2 pints in a quart and 4 quarts in a gallon. Therefore, 8 x 2 x 2 x4 = 128 fluid ounces in a gallon.


A gallon is a unit of volume measurement in the US customary and imperial systems, abbreviated as gal. One US gallon is defined as 8.3389 avoirdupois pounds or 231 cubic inches.

A fluid ounce is a unit of volume in the US customary and imperial systems of measurement abbreviated as fl. Oz.

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