US fluid ounce (fl oz US)
The US fluid ounce is used for drinks, medicine, cosmetics, and recipes with small volumes.
History: the US fluid ounce grew out of apothecary and trade volume measures and differs from the imperial fluid ounce.
Quickly convert US fluid ounces to US gallons without lookup tables or manual math.
This page is focused on converting US fluid ounces to US gallons. Type a number into the first field and the result appears immediately in the second field.
Example: 1 fl oz US = 0.0078125 gal US. Conversion formula: result = value × 2.95735295625E-5 / 0.003785411784.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
The US fluid ounce is used for drinks, medicine, cosmetics, and recipes with small volumes.
History: the US fluid ounce grew out of apothecary and trade volume measures and differs from the imperial fluid ounce.
The US gallon is used for fuel, beverages, household liquids, and American recipes.
History: the US gallon comes from older English trade measures, but its modern value differs from the imperial gallon.
Enter a value in the US fluid ounce field. The converter applies the formula "result = value × 2.95735295625E-5 / 0.003785411784" and immediately shows the result in US gallons.
1 fl oz US = 0.0078125 gal US.
Yes. Use the swap button or choose the reverse pair from the full conversion list.