Gallons to Fluid ounces Converter
One gallon equals 128 fluid ounces. To turn gallons into fluid ounces, multiply by 128. So 1 gal works out to 128 fl oz. A US gallon holds 128 US fluid ounces: four quarts, eight pints or sixteen cups.
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Your answer
1 gal =128 fl oz
- 1 gallon
- 128 fl oz
- 1 fluid ounce
- 0.0078125 gal
The math behind it: Gallons to Fluid ounces
fluid ounces = gallons x 128
Going the other way? Divide by 128 instead, or multiply by 0.0078125, because one fluid ounce is 0.0078125 gallons.
Gallons to fluid ounces chart
| Gallons (gal) | Fluid ounces (fl oz) |
|---|---|
| 0.25 | 32 |
| 0.5 | 64 |
| 0.75 | 96 |
| 1 | 128 |
| 1.5 | 192 |
| 2 | 256 |
| 3 | 384 |
| 5 | 640 |
| 10 | 1,280 |
Common questions
How many fluid ounces are in a gallon?
There are 128 fluid ounces in one gallon.
How many gallons are in a fluid ounce?
There are 0.0078125 gallons in one fluid ounce.
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