Why do they fill water bottles with 16.9oz of water instead of just filling them with 17oz?!
Answers: The use the metric standard and the bottles are supposed to be 500ml bottles. That converts to 16.9 ounces.
Room for expansion
Bottles are filled using the metric table. The conversion in fluid ounces for that particular size bottle is 16.9 oz.
Metric 1/2 litre.