How Many US Fluid Ounces in a US Gallon?
Quick Answer
1 US Gallon = 128.00007 US Fluid Ounces
1 gal = 128.00007 fl oz
128.000068
Formula
fl oz = gal × 128.00007
The calculator multiplies each gal value by 128.00007. For the reverse direction, divide fl oz by 128.00007; equivalently, 1 fl oz = 0.0078124959 gal.
Conversion Table
| US Gallons (gal) | US Fluid Ounces (fl oz) |
|---|---|
| 1 gal | 128.00007 fl oz |
| 2 gal | 256.00014 fl oz |
| 5 gal | 640.00034 fl oz |
| 10 gal | 1,280.0007 fl oz |
| 20 gal | 2,560.0014 fl oz |
| 50 gal | 6,400.0034 fl oz |
| 100 gal | 12,800.007 fl oz |
| 500 gal | 64,000.034 fl oz |
| 1,000 gal | 128,000.07 fl oz |
Worked Examples
Convert 5 gal to fl oz:
5 gal × 128.00007 = 640.00034 fl oz
Convert 10 gal to fl oz:
10 gal × 128.00007 = 1,280.0007 fl oz
Convert 50 gal to fl oz:
50 gal × 128.00007 = 6,400.0034 fl oz
FAQ
How many US Fluid Ounces are in 1 US Gallon?
There are 128.00007 US Fluid Ounces in 1 US Gallon. Formula: fl oz = gal × 128.00007.
How to convert US Gallons to US Fluid Ounces?
To convert US Gallons to US Fluid Ounces, multiply the number of US Gallons by 128.00007. For example, 10 gal = 1,280.0007 fl oz.
How many US Fluid Ounces are in 100 US Gallons?
There are 12,800.007 US Fluid Ounces in 100 US Gallons. Calculation: 100 × 128.00007 = 12,800.007.