How many bottles of water is in 33.8 fl oz?

Quick Answer

33.8 fl oz of water would fill about 1.125 standard 16.9 oz water bottles. This is because one 16.9 oz water bottle contains 16.9 fl oz, and 33.8 fl oz divided by 16.9 fl oz per bottle equals 1.125 bottles.

Calculating Bottles from Ounces of Water

To determine how many water bottles an amount of water in fluid ounces would fill, you can divide the total number of fluid ounces by the size of a standard water bottle in fl oz.

For example:

Total Fluid Ounces Bottle Size (fl oz) Bottles Filled
33.8 16.9 33.8 fl oz / 16.9 fl oz per bottle = 1.125 bottles

In this case, since a typical bottled water container holds 16.9 fl oz, dividing 33.8 fl oz by 16.9 fl oz per bottle equals 1.125 bottles filled.

The math works out nicely because 16.9 fl oz is very close to 1/2 liter or 500 mL (16.9 oz is just over 0.5 liters). So a typical disposable water bottle holds close to 1/2 liter of water.

Different Bottle Sizes

While 16.9 oz (500 mL) is the standard size for a single-serve disposable water bottle, there are many bottle sizes ranging from small 8 oz bottles to large 1 gallon jugs.

Some common sizes include:

– 8 oz bottle = 8 fl oz
– 12 oz bottle = 12 fl oz
– 16.9 oz bottle = 16.9 fl oz (most common size)
– 24 oz bottle = 24 fl oz
– 32 oz bottle = 32 fl oz
– 1 gallon bottle = 128 fl oz

So if you had 33.8 fl oz of water and wanted to figure out how many 8 oz bottles it would fill, you would divide 33.8 by 8, equaling 4.225 bottles.

The calculation adjusts based on the size of bottle used.

Visualizing Fluid Ounces in Bottles

It can be hard to visualize how many fluid ounces are actually in a bottle. Here is a helpful reference:

Bottle Size Fluid Ounces Cups Liters
8 oz 8 fl oz 1 cup 0.24 L
12 oz 12 fl oz 1.5 cups 0.35 L
16.9 oz 16.9 fl oz 2.1 cups 0.5 L
24 oz 24 fl oz 3 cups 0.71 L
32 oz 32 fl oz 4 cups 0.95 L
1 gallon 128 fl oz 16 cups 3.79 L

So a 16.9 oz bottle holds about 2 cups or half a liter of water. A 33.8 oz amount would be between 2 and 3 bottles of this size.

Fluid Ounces to Milliliters Conversion

When working with water volumes, you may also need to convert between fluid ounces and milliliters. The conversion is:

– 1 fluid ounce (fl oz) = 29.57 milliliters (mL)

So to convert 33.8 fl oz to milliliters:

– 33.8 fl oz x (29.57 mL per 1 fl oz) = 1000 mL

Which is 1 liter. A 16.9 fl oz bottle is approximately 500 mL.

Some common fl oz to mL conversions:

Fluid Ounces Milliliters
8 fl oz 236 mL
12 fl oz 354 mL
16.9 fl oz 500 mL
33.8 fl oz 1000 mL

Factors Affecting Number of Bottles

Some factors that can affect how many water bottles an amount of water in fl oz would fill include:

Bottle size – Different bottle sizes hold different amounts of water. An 8 oz bottle will be filled faster than a 32 oz bottle.

Bottle shape – The shape of a bottle impacts capacity, even if bottles are the same size. A short, wide bottle may hold less than a tall, narrow one.

Spillage – Pouring water into bottles inevitably leads to some spillage which reduces the number of bottles that can be filled.

Container fullness – Bottles are not always filled completely to the brim which leaves empty space at the top.

Water temperature – Hot water takes up slightly more volume than cooler water due to thermal expansion.

Altitude – At high altitudes, lower air pressure causes water and containers to expand somewhat.

Accounting for Spillage and Unfilled Space

To account for typical spillage and headspace when filling bottles, you would reduce the total calculated bottles by 5-10%.

For example with 33.8 fl oz:

– 33.8 fl oz / 16.9 fl oz per bottle = 2 bottles
– 2 bottles x 0.95 (5% reduction) = 1.9 bottles

So accounting for spillage, 33.8 fl oz would fill about 1.9 typical 16.9 oz water bottles rather than 2 bottles.

Typical Bottle Sizes

Here is a summary of some of the most common bottle sizes for packaging water and their fluid ounce and milliliter equivalents:

Bottle Size Fl oz Milliliters
Small / 8 oz 8 fl oz 236 mL
Medium / 16.9 oz 16.9 fl oz 500 mL
Large / 24 oz 24 fl oz 710 mL
Extra Large / 32 oz 32 fl oz 950 mL
1 Gallon Jug 128 fl oz 3,785 mL

The 16.9 oz (500 mL) bottle is the most common single-serve size that would be sold chilled in convenience stores or vending machines.

Larger bottles like 1 gallon jugs are more common for home and office water coolers.

Water Bottle Sizes for Sport and Fitness

Athletes and people engaging in fitness activities also use various sizes of water bottles for hydration:

Bottle Use Typical Size
Cycling / Running 12-24 oz
Hiking 24-32 oz
Sports – Training 12-24 oz
Sports – Games 32-64 oz
Gym / Fitness 20-32 oz

Smaller bottles around 12-24 oz are preferred for activities like cycling or running where excess weight is undesirable. Larger 32 oz and above are common for sports, gyms, and outdoor activities where more water is needed per session.

A 33.8 fl oz volume of water would be 2-3 typical fitness water bottles.

Purchasing Bottled Water

When purchasing bottled water, pricing is usually based on the number and size of bottles. Some typical pricing:

– 8 oz bottles – Sold in 24 packs for $5-10
– 16.9 oz bottles:
– Single bottles – $1-2 each
– 4 pack – $3-6
– 24 pack – $5-12
– 24 oz bottles – Sold in 24 packs for $9-18
– 32 oz bottles – Sold in 12-24 packs for $10-20
– 1 gallon jugs – Sold individually for $1-2 each

Larger bulk cases with more bottles offer a lower per-bottle cost. Buying in bulk is cheaper overall than single bottles.

So for 33.8 fl oz of water, the cheapest option would likely be:

– Two 16.9 oz 4-packs for around $6-12 total

Rather than 33.8 fl oz = 2 bottles x $1-2 per bottle = $2-4 total if bought individually.

Reusing and Recycling Bottles

Instead of purchasing disposable plastic water bottles, reusable bottles can be a more sustainable and cost effective option for drinking water on-the-go.

Reusable bottle materials include:

– Plastic (BPA-free)
– Stainless steel
– Glass

Reusable bottles come in a range of sizes from 12 oz up to 1 gallon. Using reusable bottles prevents plastic waste and saves money over time.

If disposing of plastic water bottles, be sure to empty any remaining liquid and recycle the empty bottles rather than throwing them in the trash. Most curbside recycling programs accept #1 PET plastic bottles.

Water Consumption Recommendations

Health authorities commonly recommend drinking 6-8 glasses of water per day, which is equivalent to:

– 6 glasses at 8 oz each = 48 oz
– 8 glasses at 8 oz each = 64 oz

This recommended daily volume aligns closely with the typical 16.9 oz disposable water bottle size. Drinking 4-5 bottles per day would meet general health recommendations.

Athletes, people in hot environments, and certain health conditions require more water intake, potentially up to 1 gallon (128 oz) per day.

33.8 fl oz of water represents about 20% of the recommended 64 oz per day for the average person. An amount this size could be a portion of water consumed over 1-2 hours. Spreading water intake evenly throughout the day is ideal for proper hydration.


In summary, 33.8 fluid ounces of water would fill approximately:

– 1.125 standard 16.9 oz water bottles
– 2.2 bottles of the smaller 8 oz size
– 1.4 of the large 24 oz sporting bottle size

This volume represents 20% of the daily 64 fl oz water intake recommendation, so could be consumed over a 1-2 hour span as part of staying properly hydrated throughout the day.

When purchasing bottled water, buying larger packs provides the best value over individually-sold bottles. Reusable bottles are also an environmentally-friendly option. Be sure to recycle any plastic bottles after use.

Understanding water volume conversions between fluid ounces, milliliters, number of bottles, and recommended consumption guidelines allows you to better track and meet your hydration needs.

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