Convert US Fluid Ounces to US Gallons
1 US fluid ounce = 0.0078125 US gallons. Type any value below to convert in either direction — the calculation happens in your browser.
US Fluid Ounces to US Gallons formula
Multiply the number of US fluid ounces by 0.0078125 to get US gallons.
US gallons = US fluid ounces × 0.0078125To go the other way: divide the number of US gallons by 0.0078125, or multiply by 128.
US fluid ounces = US gallons ÷ 0.0078125US Fluid Ounces to US Gallons conversion table
| US Fluid Ounces | US Gallons |
|---|---|
| 1 fl oz | 0.0078125 gal |
| 2 fl oz | 0.015625 gal |
| 3 fl oz | 0.0234375 gal |
| 4 fl oz | 0.03125 gal |
| 5 fl oz | 0.0390625 gal |
| 6 fl oz | 0.046875 gal |
| 7 fl oz | 0.0546875 gal |
| 8 fl oz | 0.0625 gal |
| 9 fl oz | 0.0703125 gal |
| 10 fl oz | 0.078125 gal |
| 15 fl oz | 0.1171875 gal |
| 20 fl oz | 0.15625 gal |
| 25 fl oz | 0.1953125 gal |
| 30 fl oz | 0.234375 gal |
| 40 fl oz | 0.3125 gal |
| 50 fl oz | 0.390625 gal |
| 75 fl oz | 0.5859375 gal |
| 100 fl oz | 0.78125 gal |
| 250 fl oz | 1.953125 gal |
| 500 fl oz | 3.90625 gal |
| 1,000 fl oz | 7.8125 gal |
US Gallons to US Fluid Ounces conversion table
| US Gallons | US Fluid Ounces |
|---|---|
| 1 gal | 128 fl oz |
| 2 gal | 256 fl oz |
| 3 gal | 384 fl oz |
| 4 gal | 512 fl oz |
| 5 gal | 640 fl oz |
| 6 gal | 768 fl oz |
| 7 gal | 896 fl oz |
| 8 gal | 1,024 fl oz |
| 9 gal | 1,152 fl oz |
| 10 gal | 1,280 fl oz |
About the US fluid ounce
A US fluid ounce is about 29.57 millilitres; the imperial fluid ounce is slightly smaller at 28.41 millilitres.
About the US gallon
A US liquid gallon is exactly 3.785411784 litres, or 128 fluid ounces.
Frequently asked questions
How many US gallons are in a US fluid ounce?
There are 0.0078125 US gallons in one US fluid ounce.
How many US fluid ounces are in a US gallon?
There are 128 US fluid ounces in one US gallon.
Is this conversion exact?
The ratio between the US fluid ounce and the US gallon is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 US fluid ounces in US gallons?
10 US fluid ounces equals 0.078125 US gallons.
Related volume conversions
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