Free online US fluid ounces to US gallons converter (fl oz to gal). Instant conversion, formula, table, real-world examples and FAQs.
Multiply the US fluid ounces value by the conversion factor:gal = fl oz × 0.0078
| US fluid ounces (fl oz) | US gallons (gal) |
|---|---|
| 1 fl oz | 0.0078 gal |
| 2 fl oz | 0.0156 gal |
| 5 fl oz | 0.0391 gal |
| 10 fl oz | 0.0781 gal |
| 20 fl oz | 0.1563 gal |
| 50 fl oz | 0.3906 gal |
| 100 fl oz | 0.7813 gal |
| 200 fl oz | 1.5625 gal |
| 500 fl oz | 3.9063 gal |
| 1000 fl oz | 7.8125 gal |
• US fluid ounces: The US fluid ounce is ≈ 29.574 mL — a volume unit, distinct from the weight ounce. Common on sodas, perfume, and spirits.
• US gallons: The US gallon equals 3.7854 L, unlike the imperial gallon (4.5461 L). US fuel and milk are sold by the gallon.
1 fl oz = 0.0078 gal. Use the converter above to compute any value, or multiply fl oz by 0.0078.
Yes — conversions use the standard international factors and are rounded to 4 decimals.
Fluid ounces are used for sodas, perfume, and spirits. US gallons are used for fuel and milk in America. Whenever a value is given in fl oz but you need gal, this converter is the quick fix.