calories in a vodka martini straight up
Vodka and Gin Served Straight Up. According to TheDailyPlate.com, a vodka martini straight up has 200 calories. A vodka martini with 1 oz. of olives is roughly 250 calories. A gin martini has 125 calories; if you add 1 oz. of olives it brings the gin martini to 175 calories. A mojito contains roughly 150 calories.