US Fluid Ounces to US Gallons Converter
1 US fluid ounce = 0.0078125 US gallons
A unit of volume, unrelated to the ounce of mass.
About 17% smaller than the imperial gallon used in the UK.
1 US fluid ounce equals 0.0078125 US gallons
How to convert US fluid ounces to US gallons
Choose the named US, Imperial or metric unit before converting a recipe or container size. A US liquid gallon is 3.785411784 L; an Imperial gallon is 4.54609 L. Volume alone cannot give ingredient mass without density.
gal = fl oz × 0.0078125One US fluid ounce is 0.0078125 US gallons, so a single multiplication converts any value.
0.078125 gal = 10 × 0.0078125A unit of volume, unrelated to the ounce of mass.
About 17% smaller than the imperial gallon used in the UK.
US fluid ounces to US gallons conversion table
Common values in US fluid ounces, converted to US gallons.
| US fluid ounces (fl oz) | US gallons (gal) |
|---|---|
| 1 | 0.0078125 |
| 2 | 0.015625 |
| 3 | 0.0234375 |
| 4 | 0.03125 |
| 5 | 0.0390625 |
| 10 | 0.078125 |
| 20 | 0.15625 |
| 25 | 0.1953125 |
| 50 | 0.390625 |
| 100 | 0.78125 |
| 250 | 1.953125 |
| 500 | 3.90625 |
| 1,000 | 7.8125 |
About these units
US fluid ouncefl oz
One 128th of a US gallon: about 29.57 mL.
US gallongal
The US liquid gallon: exactly 231 cubic inches, or 3.785411784 litres.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.