What is the best way to buy perfume fl oz or oz?

Answer 1

A fluid ounce is a volume measurement; an ounce is a weight measurement. When it comes to water (at a certain temperature, to be exact), one fl. oz = 1.04 oz.

If your question were about water, and you wanted more bang for your buck, you'd want to pay per fluid ounce.

So the question about perfume becomes, is perfume heavier or lighter than water? If it's heavier than water, then you want to pay per fluid ounce because you'll get more ounces for your money. But if perfume is lighter than water--say, lighter that 100/104ths as much, then you'd want to pay by the ounce (by weight, not volume).

Answer 2

Perfume is typically measured in fluid ounces (fl oz) rather than weight ounces (oz). When purchasing perfume, it is best to go by the volume in fluid ounces as this represents the actual amount of liquid fragrance you are getting.