1 gallon in oz = 128 fl oz
128 fl oz
1 Gallon (US) is exactly equal to 128 fl oz.
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1 US gallon = 128 fluid ounces
To convert Gallon (US) to Fluid Ounces, apply this formula to any value.
Nearby Values
| Gallon (US) (gal) | Fluid Ounces (fl oz) |
|---|---|
| 0 gal | 0 fl oz |
| 0.5 gal | 64 fl oz |
| 1 gal | 128 fl oz |
| 1.5 gal | 192 fl oz |
| 2 gal | 256 fl oz |
| 2.5 gal | 320 fl oz |
| 3 gal | 384 fl oz |
| 3.5 gal | 448 fl oz |
Convert Any Value
Need to convert a different Gallon (US) value? Use our full interactive converter:
Open Volume ConverterFrequently Asked Questions
What is 1 Gallon (US) in Fluid Ounces?
1 Gallon (US) is equal to 128 fl oz. The formula used is: 1 US gallon = 128 fluid ounces.
How do you convert Gallon (US) to Fluid Ounces?
To convert Gallon (US) to Fluid Ounces, use the formula: 1 US gallon = 128 fluid ounces. You can also use our interactive converter tool for any value.