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US Fluid Ounce to US Gallon Converter

Use this page to convert us fluid ounce values into us gallon, with background details, formulas, a worked example, and a quick conversion table.

US Fluid Ounce

A US fluid ounce is 1/128 of a US liquid gallon.

History: The US fluid ounce descends from older apothecary and customary systems.

Current use: US fluid ounces are used for beverages, labels, medicine, and recipes.

Also written as US fl oz, fl oz, fluid ounce, fluid ounces, us fluid ounce, us fluid ounces.

US Gallon

A US liquid gallon equals exactly 3.785411784 liters.

History: US gallons developed from older English wine gallon measures and differ from imperial gallons.

Current use: US gallons are used for fuel, beverages, pools, and storage in the United States.

Also written as US gal, gal, gallon, gallons, us gallon, us gallons.

US Fluid Ounce to US Gallon table

US Fluid Ounce [US fl oz]US Gallon [US gal]
0.01 US fl oz0.000078125 US gal
0.1 US fl oz0.00078125 US gal
1 US fl oz0.0078125 US gal
2 US fl oz0.015625 US gal
5 US fl oz0.0390625 US gal
10 US fl oz0.078125 US gal
20 US fl oz0.15625 US gal
50 US fl oz0.390625 US gal
100 US fl oz0.78125 US gal

Frequently asked questions

  • How many US Gallon (US gal) are in one US Fluid Ounce (US fl oz)?

    One US Fluid Ounce equals 0.0078125 US Gallon.

  • How do you convert US Fluid Ounce to US Gallon?

    Multiply the US Fluid Ounce value by 0.0078125 to get the result in US Gallon.

  • How do you convert US Gallon back to US Fluid Ounce?

    Multiply the US Gallon value by 128 to get back to US Fluid Ounce.

  • What is 8 US Fluid Ounce in US Gallon?

    8 US Fluid Ounce equals 0.0625 US Gallon.