How many water bottles equal 8 oz would depend on the size of the bottles in your country. The typical size bottle that we find in the large cases of bottled water is 16 fluid ounces. so, according to this size of bottle, half filled water bottle would cover 8 oz. Actually 1 cup = 250 ml which is 8 oz , so 4 cups = 1 liter which is 32 oz. So, 5 of a liter = 500 ml which is 2 cups thus 16 oz. 1 cup which is equal to 8 oz would cover half portion of water bottle.
How many oz in a gallon?
The United Kingdom Imperial along with Unites States (US) measurement system used to be in practice in the world for long a time to calculate how many oz in a gallon.
According to their measurement system
1 US fluid gallon = 128 US fl oz
1 US dry Gallon = 148.94684 US fl oz
1 Gallon (UK) = 160 U.K oz
Ounce in United States measurement system
A unit of weight, equal to 1⁄16pound avoirdupois or 16 drams (28.3495 grams). a unit of weight, equal to 1⁄12 pound troy or 20 pennyweights (31.1035 grams). a unit of weight, equal to 1⁄12pound apothecaries’ weight or 8 drams (31.1035 grams)
Ounce in British Imperial
A unit of weight equal to onesixteenth of a pound (avoirdupois); 1 ounce is equal to 437.5 grains or 28.349 grams. Abbreviation: oz
A unit of weight equal to onetwelfth of a Troy or Apothecaries’ pound; 1 ounce is equal to 480 grains or 31.103 grams
Fluid Ounce
A measure of volume in the US and Imperial measurement systems. About how much fits into a small medicine cup. It is about 30 mm in metric volume (more precisely 29.6 mm) 8 fluid ounces = 1 Cup.
Dry ounce
Why and where we use dry ounce. The answer is simple whenever we must take in account dry things, we use the unit dry ounce because dry things have weight and dry and small weights are measured in dry ounce
Whenever we add some dry ingredients into a recipe, we often see they are measured in a dry ounce. Like for example a cup flour or some coco powder which is often used in cakes.
Summary
How many ounces (oz) there are in a gallon of water depends on where in the world we are. we see, the US liquid gallon measures less (3.785 liters) than the UK imperial gallon (4.546 litres). When converting to ounces (fluid ounces), we need to bear in mind that the US fluid ounce measures more than the UK imperial fluid ounce. 1 Gallon (US, Fluid) = 128 Ounces (US, Fluid), and 1 Gallon (UK, Fluid) = 160 Ounces (UK, Fluid)
How many water bottles in a gallon?
The answer of how many water bottles in a gallon depends on measurement systems. The reason is that different measurement system occupies different volumes of fluid in gallons. A gallon of water by definition is 128 fluid ounces in the United States. Water bottles may vary in size, but the total number of bottles making up 128 ounces can fit in a gallon.
For example, if the water bottle is 16 ounces in size, then 8 of these bottles make up a gallon. If the water bottle is 32 ounces, then only 4 of these make up a gallon. A 1 liter bottle of water is approximately 33.9 ounces, so approximately 3.9 of these bottles make up a gallon.
Liquid Ounces Per Gallon (Chart)
1 gallon of water = 15 bottles at 8 oz every (1 glass)
1 gallon of water = 7.51 jugs at 16 oz every (1 half quart)
1 gallon of water = 7.12 containers at 16.9 oz each
1 gallon of water = 4.62 containers at 26 oz each
1 gallon of water = 3.74 jugs at 32 oz every (1 quart)
1 gallon of water = 3.56 jugs at 33.81 oz every (1 liter)
Conversion of other units of volume to the US gallon
The conversion of other units of volume to the US gallon are in the table given below.
Other Units  Conversion 

1 ounce  0.0078126 US Gallon 
1 US quart  0.251 US gallon or (1/4) th of US gallon 
1 US tablespoon  0.00390627 US gallon or (1/257) th of US gallon 
1 US pint  0.1281 US gallon or (1/8) th of US gallon 
1 Imperial quart  0.300236 US gallon 
1 Imperial pint  0.150117 US gallon 
1 Cubic Foot  7.4805323 US gallon 
Summary
The number of water bottles in a gallon depends on the size of the water bottle. A gallon is 128 fluid ounces; we must divide 128 by the number of ounces in the water bottle to get the answer.
How many 16.9 oz bottles make a gallon?
By defining US and imperial gallons you would get the answer of how many 16.9 oz bottles make a gallon. A fluid ounce in the US is defined as a 1/128th of a US gallon, meaning that 128 / 16.9 = 7.56 bottles containing 16.9 US fluid ounces of water each will make up exactly 1 US gallon.
A fluid ounce in the UK is defined as a 1/160th of an Imperial gallon, meaning that 160 / 16.9 = 9.45 bottles containing 16.9 Imperial fluid ounces of water each will make up 1 Imperial gallon.
Why is there such a big difference in US and UK gallon?
A US gallon is defined to contain around 3.786 Liter of liquid, meaning that the US fluid ounce contains around 29.571 mL. As a result, a 16.9 fl.oz. bottle will contain around 500 mL of liquid.
In the UK however, the Imperial gallon is defined to contain around 4.546 Liter of liquid, but interestingly, due to their definition for the fluid ounce of 1/160th of gallon vs 128th in the US, the volume of an Imperial fluid ounce is around 28.412 mL; very close to the US definition despite the large difference in their definition of the gallon. As a result, a 16.9 fl.oz. bottle in the UK would contain around 480 mL of liquid.
Summary
There are currently two actively used systems describing how much liquid is contained in a gallon, and the fluid ounce in each system is directly dependent on that definition US gallon. A fluid ounce in the US is defined as a 1/128th of a US gallon, meaning that 128 /16.9 = 7.56 bottles containing 16.9 US fluid ounces.
How many cups is 16.9 oz?
To calculate how many cups is 16.9 oz, we have to just divide by 8, there are 8 oz in every cup. So to answer this question it is 2.1126 3 cups 1oz.
About 2 cups. 8 oz is 1 cup, and 8 + 8 would equal 16. So, I would figure about 2.
If we were to get 8 cups of water a day, we would have to drink 4 16.9 oz water bottles, if that is what we are referring to.
How many cups in a gallon?
The exact calculation of how many cups in a gallon is as:
 1 US liquid gallon = 1 UK gallon = 16 cups
 1 US dry gallon = 18.62 cups
One US fluid gallon and one UK (royal) gallon have similar change of 16 cups. The US dry gallon then again is changed over to 18.62 cups.
However, cups to dry gallons are not, at this point utilized in business settings since they are currently utilizing the unit of estimation called bushel for dry fixings. For this issue, what you have to recall is that there are 16 cups in a gallon.
Volume Conversion for US Ounces to Cups
8 fluid ounces = 1 cup
Volume Conversions for US Cups to Pints
2 cups = 1 pint
How Many US Cups in a Gallon?
Gallons  Cups 

1 US fluid gallon  16 US cups 
1 US dry gallon  18.62 US cups 
1 Imperial gallon  18.181 metric cups 
1 gallon of water  16 cups 
1 gallon of milk  16 cups 
1 gallon of coffee  20 cups of coffee beans 
½ gallon of water  8 cups 
½ gallon of milk  8 cups 
½ gallon of coffee  8 cups 
Summary
To find out how many cups is 16.9 oz, simply divide 16.9 by 8. 16.9 ounces is equal to 2.12 cups. 16.9 ounces to cups to convert 16.9 oz to cups and vice versa quickly and easily. 16.9 oz to cups will not only convert 16.9 ounces to cups, but will also convert 16.9 ounces to other units such as milliliter, liter, gallon, pint, tablespoon and more.
1 cup equals how many ounces?
A cup is a small round container that you drink from.
Cups come in a variety of sizes and are made of different materials such as plastic, metal etc so does their different measurements.
It can also be defined as unit of measure that equals half a pint or eight fluid ounces.
If No. of Cups are given as US cups, then:
1 Cup = 8 ounces
Cups to ounces conversion chart
We can estimate and create our own measurement table for converting ounces into cups in order to save our time and instead of repetitive calculation we can simply prepare a chart once and look out the measurements quickly whenever needed.
One of the table is given below:
Cups  No. Of Ounces  

1  8 ounces  
1/2  4 ounces  
1/4  2 ounces  
1/8  1 ounce  
1 1/2  12 ounces  
1.2  9.6 ounces  
1.3  10.4 ounces  
1.6  12.8 ounces  
2  16 ounces  
2 1/2  20 ounces  
3  24 ounces 
Ounces to cups conversion chart
In a similar manner We can also calculate the no. of cups formed by how many no. of ounces. Chart for conversion is given below:
No. of ounces  No. Of cups  

8 ounces  1  
16 ounces  2  
24 ounces  3  
32 ounces  4  
40 ounces  5 
Summary
If you want to convert between cups and dry ounces (oz), it’s important to note that the cup (US, UK or metric) is a unit of volume and the dry ounce (oz) is a unit of weight. This means that to make the conversion, you need a substance density figure. As a very crude example, a cup full of sugar will weigh less than a cup full of olive oil because olive oil is a denser substance.
How many ounces in half cup?
How many Fluid Ounces in a half Cup. The answer is that there are 4 fluid ounces (fl oz) in half cup.
As we know, there are 8 fluid ounces (fl oz) in a cup of US standard of cups.
If we want to know that How many ounces in a half cup? Then we have to consider this as:
1 cup = 8 fl oz
1/2 cup = 4 fl oz.
According to Imperial Units, in terms of liquid half cup contains 4.17 imperial fluid ounces. And in terms of dry, half cup contains 4.16 ounces.
Different Measurements of Cups

Liquid measuring  Liquid measuring container which is cup is there to measure exact amount of fluid ounces in a cup. So;
1 cup = 8 fluid ounces = 1/2 pint = 237 ml. 
Dry measuring  Dry cups measure accurate amount of ingredients in cups to know better ingredients and they are levelled to the edge of the cup.
1 dry cup = 6.8 US dry ounces = 16 tbsp = 5 pounds = 222 grams.
Summary
There are 8 fluid ounces in 1 cup of US standard. When we divide the full cup ounces in half, we came to know exact amount of ounces in half cup. 1/2 cup = 0.5 cup. So, 0.5 x 8 = 4 fl oz .
How many ounces in 4 cups?
We determine ounces in cups to know about the measurements of a cup. These measurements helps in weighing different things in cup and to know their volumes.
So, we are here to know; how many ounces in 4 cups?
There are 32 fluid ounces in 4 number of cups. We got this answer by multiplying the number of cups with the number of fluid ounces in one cup.
Conversion Relation
How many ounces in a cup? How many ounces in different number of cups?
As we know, There are 8 ounces in 1 cup : 8 oz = Cup
So if we have to determine ounces in 4 cups, then,
8 oz = 1 cup
For four cups:
8 oz x 4 = 32 fl oz.
Summary
We measure those cups and also measure there divisions to know accurate amounts and to weigh their products. So, we concluded that there are 8 ounces in a cup and when we multiply these ounces with no. of cups , we got 32 ounces in 4 cups.
How Many Glasses Are in a Gallon of Water?
In this heading, I will cover how many glasses in a gallon for standard and nonstandard glasses.
How Many Glasses in a Gallon: Standard Glass
A gallon contains 128 ounces. A standard glass contains eight ounces. So, one gallon equals 16 eight ounce glasses of water.
How Many Glasses in a Gallon: NonStandard Glass
Common types of glassware include pint glasses, which normally hold 16 ounces, or smaller, lowball glasses which hold between four to eight ounces, depending on the glass.
Since a pint glass holds 16 ounces, and a gallon is 128 ounces, one gallon equals eight pint glasses.
A gallon holds 32 4ounce lowball glasses, approximately 21.3 6ounce lowball glasses, and 16 eight ounce lowball glasses.
In order to find out how many glasses of a particular size are in the gallon, we can divide 128 (the number of ounces in a gallon) by the number of ounces our glass holds.
How many Ounces in 1/3 Cups?
As we know there are 8 fluid ounces in a cup of US standard. So, by keeping in mind total no. of fluid ounces in a cup, we determine that How many ounces in 1/3 of a cup?.
The answer is that there are 6 fluid ounces in 1/3 of a cup. We came to know by dividing the cups with the number of fluid ounces in a cup.
What is 1/3 of a cup?
1/3 of a cup means that onethird of a cup. As we know, we determine different portions of cup to know how many fluid ounces are in a cup?
So, there are 8 fluid ounces in a whole cup.
If we have to determine 1/3 then,
Conversion
1 cup = 8 fl oz
1/3 cup = 0.75 of cup
0.75 cup x 8 fl oz = 6 fl oz
Table
OUNCE  CUP 

8 oz  1 cup 
2  1/4 cup 
4  1/2 cup 
6  1/3 cup 
Summary
We determined that there are 4 fluid ounces in a half cup. We know that there are 8 fluid ounces in a cup of US standard. When we divide the cup in 1/3 and also divide the ounces in a cup, we came to know that there are 6 fluid ounces in onethird of a cup of US standard.
Frequently Asked Question

How many glasses is 2 Litres of water?
Health authorities commonly recommend eight 8ounce glasses, which equals about 2 liters, or half a gallon. This is called the 8×8 rule and is very easy to remember. However, some health gurus believe that we need to sip on water constantly throughout the day, even when we are not thirsty.

Does 64 oz equal a half gallon?
The answer is simple; there is 64 oz in half a gallon. Always keep in mind that ounces are denoted by symbol “oz” whereas fluid ounces are denoting by symbol “fl oz.” In the simple words, 16 cups of water make up to the one gallon.

How many oz a QT?
1 US fluid quart is equal to 32 fluid ounces (oz). To convert quarts to fluid ounces, multiply the quart value by 32.

How many 16 oz cups are in a gallon?
According to U.S. standard, 1 gallon stands for 128 fluid oz. Therefore, if you want to know, how many 16 oz bottles in a gallon? Then simply divide 128 by 16. And that would be 8 water bottles of 16 fluid oz in order to fill a gallon.

How many 8 oz glasses are in a quart?
There are five 8 oz glasses in a quart.

How many quarts is 29 ounces?
What is 29 ounces in quarts? 29 fl oz to quarts conversion. A U.S. fluid ounce is 1/128th of a U.S. gallon. It is not the same as an ounce of weight or an Imperial fluid ounce.

How many fluid ounces in a cup?
SMALL VOLUME (LIQUID):
TABLESPOONS  CUPS  FLUID OUNCES 

1 tablespoon  3 teaspoons  1/2 fluid ounce 
2 tablespoons  1/8 cup  1 fluid ounce 
4 tablespoons  1/4 cup  2 fluid ounces 
5 tablespoons + 1 teaspoon  1/3 cup  
16 tablespoons  1 cup  8 fluid ounces 
LARGE VOLUME (LIQUID):
CUPS  FLUID OUNCES  PINTS/QUARTS/GALLONS 

1 cup  8 fluid ounces  1/2 pint 
2 cups  16 fluid ounces  1 pint=1/2 quart 
3 cups  24 fluid ounces  1 1/2 pints 
4 cups  32 fluid ounces  2 pints=1 quart 
8 cups  64 fluid ounces  2 quarts=1/2 gallon 
16 cups  128 fluid ounces  4 quarts=1gallon 
DRY MEASUREMENTS:
 1 cup = 16 tablespoons
 1 pound dry = 16 ounces
Conclusion
A standard serving of any beverage bottle is generally considered to be 8 oz per serving. So “8 glasses” is 64 fluid oz. As a result, these 64 oz are equivalent to four 16 oz bottles. Conversely, if you are consuming a 750 ml bottle of sparking water, you would need 2 1/2 bottles (a 750 ml bottle contains 25.34 fluid oz).
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