Peanut butter is a calorie-dense food that is popular among fitness enthusiasts and individuals trying to gain weight. Calories in One Tablespoon of Peanut Butter One tablespoon (16 grams) contains approximately 90–100 calories. Calories in Two Tablespoons of Peanut Butter Two tablespoons provide around 180–200 calories. Why Is Peanut Butter High in Calories? Peanut butter…