Mixing vodka with soda can vary the calorie count considerably, as the cocktail being prepared may contain either calorie-free soda water, calorie-free diet soda or regular soda, which is not a calorie-free beverage. Vodka is an incredibly diverse drink, and it is used as the primary alcohol in many drinks and cocktails.
Calorie totals are generally not presented on most alcoholic beverages, however, the United States Department of Agriculture totals 64 calories per 1-ounce serving of 80-proof vodka. Many recipes call for 1 1/2 shots of vodka, which totals 3 ounces or 192 calories.
Aside from a non-alcoholic mixer, people have to consider how much vodka they plan to use when making a vodka soda and whether the soda base contains calories itself. A vodka soda can be a sensible drink option if a calorie-free, non-alcoholic base is used, and the amount of vodka used in the drink doesn't exceed the total amount of the non-alcoholic base.