Each Country defines the quantity differently and has its own rules while few have the same units as others. In this modern world, it’s necessary to know about this relation. In our daily life, it is important to be familiar with such units. For example, if a chef teaching you how to bake a dish and he told you to add a gallon of water but you have no idea about the ounces.

If I know how many ounces are there in a gallon, then I can efficiently perform the task of baking a dish. Hence to get a piece of knowledge we will focus on the relation between ounces and gallons. We will know how many ounces are there in a gallon.

1 UK fluid Ounce = 0.00625 UK fluid gallon

1 US Ounce = 0.0078125 US gallon

How many ounces in a gallon?

The answer depends upon where you are in the world because remember that the US liquid gallon measure 3.785 liters less than the UK  imperial gallon 4.546 liters. There is a big difference between the two.

In 1 US Fluid gallon, there are 128 US fluid ounces, while 1 US fluid ounce is equal to 0.0078125 Gallon. If we want to convert US fluid ounce to gallons, multiply US Fluid Ounce value by 0.0078125 or divided by 128. Similarly, in one UK Fluid gallon, there are 160 UK fluid ounces. While 1 UK fluid ounce is equal to 0.00625 UK Fluid Gallon. If we want to convert UK fluid ounce to gallons, multiply UK Fluid Ounce value by 0.00625 or divided by 160.

What is a Fluid ounce?

An ounce is a unit of volume, mass, or weight used in most British derived customary systems of measurement. It is also used in the United States to measure packaged foods and food portions, postal items, the areal density of paper and fabric, Gloves, boxing, and so on. The symbol used for measurement is “fl oz”.

1UK fluid Ounce = 0.00625 UK fluid gallon

1 US Ounce = 0.0078125 US gallon

What is a gallon?

The gallon is used to take for measuring volume and fluid capacity in both the US and UK and the symbol is “gal”.

1 US Fluid Gallon= 128 US Fluid Ounces

1 UK Fluid Gallon = 160 UK Fluid Ounces

How to Convert US Fluid Gallon Gallon to US Fluid Ounces?

In one gallon there is 128 US fluid ounce. If we want to convert US fluid gallons to fluid ounces, multiply the US fluid gallon value by 128.

1 US Fluid Gallon= 128 US fluid ounces

For example, if we find out Ounces in a one and a half US fluid gallon then multiply 1.5 by 128, the answer is 192 US fluid ounces in one and half-gallon.

How to Convert UK Fluid Gallon to UK Fluid Ounces?

In one UK Fluid gallon, there are 160 UK fluid ounces. If we want to convert UK gallons to fluid ounces, multiply the UK Fluidgallon value by 160.

1 UK Fluid Gallon= 160 Imperial fluid ounces

For example, if we find out UK Fluid Ounces in a one and a half gallon then multiply 1.5 by 160, the answer is 240 UK fluid ounces in one and half-gallon.

Gallons to ounces conversion table:

Below is the table, in which a list of few conversions is given, it might be helpful:

Gallons (US)	Ounces (US)	Gallons (UK)	Ounces (UK)
1	128	1	160
2	256	2	320
3	384	3	480
4	512	4	640
5	640	5	800
6	768	6	960
7	896	7	1120
8	1024	8	1280
9	1152	9	1440
10	1280	10	1600
11	1408	11	1760
12	1536	12	1920
13	1664	13	2080
14	1792	14	2240
15	1920	15	2400