Several beverages are calorie-free, water being one of them. Popular sports drinks, sodas and flavored waters now have sugar-free or diet choices. These drinks do not have the added calories from sugar but rather use a sugar substitute to make them sweet in taste. The label will identify if these drink options are calorie-free, and the nutrition label should state zero calories per serving. Coffee and tea are other calorie-free beverages. Take into consideration when you add cream or sugar, you are adding calories, and it is no longer a calorie-free beverage.