This Luxardo Bitter Bianco Spritz is approximately 15% ABV (alcohol by volume). The Bitter Bianco is 30% ABV and Prosecco is around 11% ABV. Different bitters, such as Select, Campari or Aperol will have different ABV levels, so if you are interested in calculating the alcohol content of these Spritz Veneziano variants, you will need to calculate them separately.