Is eau de parfum 50ml e 1.6 fl oz less than 3 ounces?

Yes, 50ml is approximately 1.7 fluid ounces, which is less than 3 ounces. Specifically, 1.6 fl oz is slightly less than 50ml, as 1 ounce is about 29.57ml. Therefore, both measurements are under 3 ounces.