Perfumes are sold in a variety of amounts, measured in ounces or millilitres (ml), indicating the volume of fluid in a bottle, decant, or vial of fragrance.
These are the size representations for all perfume decants sold in the store :
1ml Sample - enough to test a fragrance two or three times depending on how much you use
5ml glass spray (1/6 oz) - you get approximately 73 sprays from this bottle
10ml glass spray - just a little over 1/4 oz. and you get approximately 115 sprays from this bottle
Full Bottle - perfect choice to use a fragrance more.