Understand the Volume Conversion
A gallon (in the United States) is defined as 128 fluid ounces. We are trying to figure out how many 16.9-ounce bottles of water it will take to equal 1 gallon.
Divide the Total Gallon Volume by the Volume of One Bottle
Each bottle contains 16.9 fluid ounces of water. To determine how many bottles make up 1 gallon, we divide the total fluid ounces in a gallon (128) by the fluid ounces in one bottle (16.9).
16.9 fluid ounces per bottle128 fluid ounces (1 gallon)=7.57
Interpret the Result
The result is approximately 7.57 bottles. This means that you would need slightly more than 7.5 bottles of 16.9 ounces to reach 1 gallon. In practical terms, this means:
- 7 bottles would give you:
7×16.9=118.3 fluid ounces
This is slightly less than 128 fluid ounces (1 gallon). - 8 bottles would give you:
8×16.9=135.2 fluid ounces
This would slightly exceed 128 fluid ounces, giving you more than 1 gallon.
Conclusion
It takes approximately 7.57 bottles of 16.9 ounces to make 1 gallon, which rounds up to about 8 bottles if you want to exceed a gallon. If you only need to match a gallon exactly, 7 bottles would be slightly under 1 gallon.