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Case of Water to Gallons

Estimate how many gallons are in a common case of water, using a 24 pack of 16.9 fluid ounce bottles.

case of water to gallons

A common case of water is about 3.17 gallons.

Many US water cases contain 24 bottles, and many single bottles are 16.9 US fluid ounces. Since 1 US gallon equals 128 fluid ounces, 405.6 fluid ounces is about 3.17 gallons.

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Formula and estimate

24 bottles x 16.9 fl oz = 405.6 fl oz; 405.6 / 128 = 3.17 gal

This assumes the common 24 pack of 16.9 fl oz bottles. If your case has a different bottle count or bottle size, multiply count by bottle size first.

Questions people ask

How many gallons are in a case of water?

A common 24 pack of 16.9 oz water bottles is about 3.17 US gallons.

What if my case has 32 bottles?

Multiply the bottle count by the bottle size in fluid ounces, then divide by 128 to get US gallons.