How many oz in a gallon?
How many ounces there are in a gallon depends on what system we are running and where you are in the world. Due to different countries, different standard units for measuring mass and volume have been introduced.
How many ounces are in a gallon?
We deal with the various units of routine matters. These units of measure have their meaning because we usually use them in baking and cooking.
Ounces In A Gallon — United States | Infographic
Ounces to gallons
It depends on the system we are running.
This means that the deviation depends on the UK or US measurement system.
1 gallon measures as 128 ounces in the US measurement
1 gallon = 128 ounces (US system)
1 gallon measures as 160 ounces in the UK measurement
1 gallon = 160 ounces (UK system)
UK Imperial System and US System (a variation of the Imperial System). These were probably the most common because of the population, power, and reach of the UK and the US. While the SI metric system came into the scene later.
Ounces to a gallon in terms of liters
US
1 gallon (US, Fluid) = 3.785 liters
1 liter = 33.814 ounces (US liquid)
1 liquid gallon = 3.785 x 33.814 = 128 ounces
United Kingdom
1 gallon (UK, liquid) = 4.54609 liters
1 liter = 35.1951 ounces (UK liquid)
1 liquid gallon = 4.54609 x 35.1951 = 160 ounces