US Gallons to US Fluid Ounces Converter
1 US gallon = 128 US fluid ounces
1 US fluid ounce = 0.0078125 US gallons
How to convert US gallons to US fluid ounces
To convert US gallons to US fluid ounces, multiply the value in US gallons by 128.
fl oz = gal × 128
Example: 5 gal × 128 = 640 fl oz
US Gallons to US Fluid Ounces conversion table
| US Gallon (gal) | US Fluid Ounce (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 |
| 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 |
| 12 gal | 1,536 fl oz |
| 15 gal | 1,920 fl oz |
| 20 gal | 2,560 fl oz |
| 25 gal | 3,200 fl oz |
| 30 gal | 3,840 fl oz |
| 40 gal | 5,120 fl oz |
| 50 gal | 6,400 fl oz |
| 60 gal | 7,680 fl oz |
| 70 gal | 8,960 fl oz |
| 75 gal | 9,600 fl oz |
| 80 gal | 10,240 fl oz |
| 90 gal | 11,520 fl oz |
| 100 gal | 12,800 fl oz |
| 150 gal | 19,200 fl oz |
| 200 gal | 25,600 fl oz |
| 250 gal | 32,000 fl oz |
| 500 gal | 64,000 fl oz |
| 1,000 gal | 128,000 fl oz |
About these units
US Gallon (gal)
The US gallon (gal) is a unit of volume in the United States customary system. 1 US gallon equals 3.785411784 liters. This value is exact by definition.
US Fluid Ounce (fl oz)
The US fluid ounce (fl oz) is a unit of volume in the United States customary system. 1 US fluid ounce equals 0.02957352956 liters. This value is exact by definition.
Frequently asked questions
What is 1 US gallon in US fluid ounces?
1 US gallon equals 128 US fluid ounces.
How do I convert US gallons to US fluid ounces?
To convert US gallons to US fluid ounces, multiply the value in US gallons by 128. Example: 5 gal × 128 = 640 fl oz
What is 5 gal in US fluid ounces?
5 US gallons equals 640 US fluid ounces.