How many calories in a VODKA and grapefruit juice?

The calorie content of a vodka and grapefruit juice drink depends on the proportions used. Typically, a 1.5-ounce serving of vodka contains about 97 calories, while an 8-ounce serving of grapefruit juice has around 100 calories. Therefore, a standard vodka and grapefruit juice cocktail can range from approximately 197 calories to more, depending on the amount of juice used. Always check specific brands and measurements for a more accurate count.