How much gallons in a ounce or in half ounce ? - letsdiskuss
Official Letsdiskuss Logo
Official Letsdiskuss Logo


Earn With Us

Satindra Chauhan

| Posted on | Education

How much gallons in a ounce or in half ounce ?


 Let us first know, what is an ounce? It is a unit of volume. Generally alluded to as oz. One of the particularities of the ounce is that it can have an alternative incentive on whether we are utilizing the US unit system or the UK unit system. There are two ounces - dry ounce and fluid ounce. Now comes to the Gallons, referred to as " gal'' which is the unit of volume just like the ounce. Similarly, a gallon is also divided into US liquid gallon and dry gallon. Though the UK also has its gallons and it is 20% larger than the US gallon. 

 Now coming to the question,   there is 128 fl oz in a full gallon and 64 half an in half a gallon. 



picture courtesy- Google




1 gallon ( US, Fluid) = 128 oz ( US , Fluid) . 

 For better understanding, let us see how much liquid a US gallon contains. 

1 US cup =  the 8 oz 

2 US cup =  16 oz 

Thus 4 cups are equal to 32 ounces which form ¼ th of a gallon. Therefore 8 cups are equal to 64 oz. That is the half-gallon. Then 16 ups are exactly equal to the 128 oz which is equal to 1 gallon.

US customary unit conversion :- 

1 cup = 8 fluid ounce ( fl oz ) 

1 pint = 2 cup ( c) 

1 quart = 2 pints ( pt) 

1 gallon = 4 quarts ( qt) 

The formula for calculating the  number of ounce in a gallon 

8 fl oz / c × 2 c / pt × 2 pt / qt × 4 qt / gallon = 128 fl oz / gallon.


Student | Posted on

How many gallons in an ounce or in half ounce?


I was listening to the radio today and heard about how you can’t divide by zero. I think it's interesting because I don’t know why there is not an answer for how many gallons are in an ounce. It could be because one gallon is equal to 128 fl oz or 64 half in a half gallon.


What is a gallon? 

A gallon is a measurement of volume used in the United States and some other imperial measure countries. It is defined as 231 cubic inches, or liters. 


The word “gallon” comes from the Latin word "galleus", which suggests “a liquid measure”, and dates to about the year 1000 CE. The abbreviation “gal." is additionally acceptable for "gallon".


What is an ounce? 

An ounce is the weight used to measure liquid and solid substances. The name comes from the Latin uncia, which suggests "twelfth part".

Ounces may also be measured as a monetary unit of measurement and trade, and it is commonly abbreviated as "oz." Many countries have adopted ounces as their standard unit for measuring weight in trade, mostly due to Britain's former use of this system. Although not all countries have officially made an ounce their standard unit, ounces are still used in everyday language around the globe. 

Generally speaking, 1 US fluid ounce is equal to 30 grams or approximately 3 tablespoons or 3 teaspoons. However it's important to be aware that there are many different measurements of liquid ounces across various places.

Fluid ounce

Fluid ounces are a measure of liquid volume. One fluid ounce is equal to 0.9375 cups or 29.5735 milliliters (mLs). They can be used for measuring the amount of liquid in containers, cooking, and recipes that involve the use of liquids as ingredients. In the US system, a fluid ounce is as much as 1⁄8 cup or as little as ¼ teaspoon -- it all depends on how much you want to pour!


In order to make sure you’ve been given a proper measurement for your beverage or food item at a restaurant, first convert it from ounces into milliliters by multiplying by 30 on a calculator and then dividing by 30 on a calculator again.