Gallons to Ounces Conversion

How many ounces in a gallon?

How many ounces in a gallon ? If the conversion is from U.S. fluid gallons to ounces then there are 128 ounces in a gallon. The commonly converted numbers and the results can be found in the conversion table at the end of the page but for anything else please use the converter below.

1 Gallon [Fluid, US] = 128 Ounces [Fluid, US]

1 Gallon [UK] = 160 Ounces [UK]

For ounces to gallons converter, please go to ounces to gallons

For other volume unit conversions, please go to Volume Conversion
Converter

Enter a US gallon value that you want to convert into ounces and click on the "convert" button.

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Gallon is unit of volume in imperial and U.S. customary systems. After the metric system is adapted, many countries replaced it with liter. In U.S. customary system, there are two types of gallons (fluid and dry) and they are different in sizes, in imperial system there is only one type gallon. It's commonly used unit of volume such as measuring the fuel efficiency as miles per gallon, etc. The abbreviation is "gal".

Fluid ounce is an imperial and U.S. customary volume unit. Fluid ounces are volume units and should not be mistaken with ounces which is mass (weight) unit. The abbreviation is "fl oz".

Conversion Table [Fluid, US]

GallonFl. OunceGallonFl. OunceGallonFl. OunceGallonFl. Ounce
1128263328516528769728
2256273456526656779856
3384283584536784789984
45122937125469127910112
56403038405570408010240
67683139685671688110368
78963240965772968210496
810243342245874248310624
911523443525975528410752
1012803544806076808510880
1114083646086178088611008
1215363747366279368711136
1316643848646380648811264
1417923949926481928911392
1519204051206583209011520
16204841524866844810012800
17217642537667857612516000
18230443550468870415019200
19243244563269883217522400
20256045576070896020025600
21268846588871908825032000
22281647601672921630038400
23294448614473934450064000
24307249627274947275096000
2532005064007596001000128000