How to convert US gallons to US fluid ounces
One US gallon equals 128 US fluid ounces. To convert, multiply the value in US gallons by 128: fl oz = gal × 128.
US gallons to US fluid ounces chart
| US gallons (gal) | US fluid ounces (fl oz) |
|---|---|
| 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 |
| 10 gal | 1,280 fl oz |
| 15 gal | 1,920 fl oz |
| 20 gal | 2,560 fl oz |
| 25 gal | 3,200 fl oz |
| 50 gal | 6,400 fl oz |
| 100 gal | 12,800 fl oz |
| 1,000 gal | 128,000 fl oz |
Related volume converters
US fluid ounces to US gallonsUS gallons to MillilitersUS gallons to LitersUS gallons to US quartsUS gallons to US cups
Frequently asked questions
How many US fluid ounces are in a US gallon?
There are 128 US fluid ounces in 1 US gallon.
How do I convert US gallons to US fluid ounces?
Multiply the number of US gallons by 128. For example, 10 gal × 128 = 1,280 fl oz.
What is 10 gal in fl oz?
10 gal = 1,280 fl oz.