how many calories are in a margarita?
Frozen: 180 calories (all carbs) for a 4 oz serving. Considering the average margarita glass holds 12 oz you're looking at 540 calories. There are about 218 calories in a frozen margarita. Frozen: 180 calories (all carbs) for a 4 oz serving. Considering the average margarita glass holds 12 oz you're looking at 540 calories. <br />There are about 218 calories in a frozen margarita.