Volume
Gallon to Fluid Ounce
Convert gallon to fluid ounce instantly.
About this conversion
Gallon bruges i USA til brændstof, maling og store væskemængder. Amerikanere måler benzinforbrug i miles per gallon (mpg), og en gallon mælk er standard i supermarkeder. 1 US gallon ≈ 3,785 liter. Fluid ounce (fl oz) bruges i USA og UK til drikkevarer og opskrifter. En standard dåse sodavand er 12 fl oz (≈355 ml), og en shot er 1,5 fl oz (≈44 ml). 1 US fl oz ≈ 29,6 ml. 1 Gallon equals 128 fluid ounce. The converter above calculates the result instantly — you can also swap the units to convert in the other direction.
How to use
Enter a value in the gallon field and instantly see the result in fluid ounce. Click the swap button to reverse the conversion.
Manual calculation
1 gallon = 128 fluid ounce. Example: 10 gal = 1,280 fl oz.
Frequently asked questions
How do you convert gallon to fluid ounce?
Multiply the number of gallon by 128 to get fluid ounce. Example: 10 gal × 128 = 1,280 fl oz.
Are gallon bigger or smaller than fluid ounce?
Gallon is larger than Fluid Ounce. One gallon equals 128 fluid ounce, so the result is a larger number when converting from gallon to fluid ounce.
What is 5 gallon in fluid ounce?
5 gal equals 640 fl oz.
How many gallon are in 1 fluid ounce?
1 fl oz equals 0.0078125 gal. This is the reverse conversion — useful if you have a value in fluid ounce and want it in gallon.
What is gallon?
Gallon bruges i USA til brændstof, maling og store væskemængder. Amerikanere måler benzinforbrug i miles per gallon (mpg), og en gallon mælk er standard i supermarkeder. 1 US gallon ≈ 3,785 liter.
What is fluid ounce used for?
Fluid ounce (fl oz) bruges i USA og UK til drikkevarer og opskrifter. En standard dåse sodavand er 12 fl oz (≈355 ml), og en shot er 1,5 fl oz (≈44 ml). 1 US fl oz ≈ 29,6 ml.