Volume Converter
Result
... US Gallon = ... US Fluid Ounce
Result
... US Gallon
=
... US Fluid Ounce
Find the units to convert
US Gallon to US Fluid Ounce Converter
Use this page to convert us gallon values into us fluid ounce, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 US gal = 128 US fl oz
1 US fl oz = 0.0078125 US gal
Example: 8 US gal = 1,024 US fl oz
US Gallon
A US liquid gallon equals exactly 3.785411784 liters.
History: US gallons developed from older English wine gallon measures and differ from imperial gallons.
Current use: US gallons are used for fuel, beverages, pools, and storage in the United States.
Also written as US gal, gal, gallon, gallons, us gallon, us gallons.
US Fluid Ounce
A US fluid ounce is 1/128 of a US liquid gallon.
History: The US fluid ounce descends from older apothecary and customary systems.
Current use: US fluid ounces are used for beverages, labels, medicine, and recipes.
Also written as US fl oz, fl oz, fluid ounce, fluid ounces, us fluid ounce, us fluid ounces.
US Gallon to US Fluid Ounce table
| US Gallon [US gal] | US Fluid Ounce [US fl oz] |
|---|
| 0.01 US gal | 1.28 US fl oz |
| 0.1 US gal | 12.8 US fl oz |
| 1 US gal | 128 US fl oz |
| 2 US gal | 256 US fl oz |
| 5 US gal | 640 US fl oz |
| 10 US gal | 1,280 US fl oz |
| 20 US gal | 2,560 US fl oz |
| 50 US gal | 6,400 US fl oz |
| 100 US gal | 12,800 US fl oz |
Frequently asked questions
How many US Fluid Ounce (US fl oz) are in one US Gallon (US gal)?
One US Gallon equals 128 US Fluid Ounce.
How do you convert US Gallon to US Fluid Ounce?
Multiply the US Gallon value by 128 to get the result in US Fluid Ounce.
How do you convert US Fluid Ounce back to US Gallon?
Multiply the US Fluid Ounce value by 0.0078125 to get back to US Gallon.
What is 8 US Gallon in US Fluid Ounce?
8 US Gallon equals 1,024 US Fluid Ounce.
