CalcVind

US Fluid Ounces to US Gallons Converter

Convert US fluid ounces (fl oz) to US gallons (gal)

Convert Volume

fl oz

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Result

0.0078125 gal
US Gallons

1 fl oz = 0.0078125 gal

1 fl oz in other units

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How to convert US fluid ounces to US gallons

There are 128 US fluid ounces in one US gallon, so divide the number of US fluid ounces by 128.

gal = fl oz ÷ 128

1 fl oz = 0.0078125 gal · 1 gal = 128 fl oz

Worked example

To convert 5 US fluid ounces to US gallons: 5 fl oz ÷ 128 = 0.0390625 gal.

About US fluid ounces (fl oz)

A US fluid ounce is about 29.57 mL. Drink and bottle sizes in the US use fluid ounces.

About US gallons (gal)

A US gallon is 128 US fluid ounces, about 3.785 litres. US fuel and milk are sold by the gallon.

More conversions

US Fluid Ounces to other units

Other units to US Gallons

Frequently asked questions

How many US gallons are in one US fluid ounce?

One US fluid ounce equals 0.0078125 US gallons.

How many US fluid ounces are in one US gallon?

One US gallon equals 128 US fluid ounces.

How do I convert US fluid ounces to US gallons?

Use the formula gal = fl oz ÷ 128. For example, 5 fl oz ÷ 128 = 0.0390625 gal.