What is US fluid ounce?

A US fluid ounce is a volume unit equal to approximately 29.57 millilitres. It is used in the United States for beverage servings, cooking measurements, and product labelling.

What is US gallon?

A US gallon is a volume unit equal to 128 US fluid ounces, or approximately 3.785 litres. It is the standard unit for fuel, milk, and other liquid products in the United States.

Worked examples

1 US fluid ounce = 0.0078125 US gallon

1 US gallon = 3.78541178 litre

More Volume conversions

• Convert US fluid ounce to litre
• Convert US fluid ounce to millilitre
• Convert US fluid ounce to US gallon
• Convert US fluid ounce to cubic metre
• Convert US fluid ounce to Imperial gallon
• Convert US fluid ounce to Imperial fluid ounce
• Convert US fluid ounce to teaspoon (metric)
• Convert US fluid ounce to tablespoon (metric)
• Convert US fluid ounce to cubic centimetre