One pint of grape tomatoes varies in the number of actual tomatoes and size. On average, that's 30 to 40 grape tomatoes. 40 grape tomatoes is 122 calories, 1.4 grams of fat, … 34 grams of sodium, 26.7 carbs, 8.2 grams of fiber, 17.9 grams of sugar and 6 grams of protein.