In a 3.5 oz serving of original baked beans there are 79 calories; In 1 oz of original baked beans there are 22 calories; In 10 g of original baked beans there are 8 calories; Baked beans calories - Vegetarian. In a 4.6 oz serving of vegetarian baked beans there are 130 calories; In 1 oz of vegetarian baked beans there are 28 calories; In 10 g of vegetarian baked beans there are 10 calories; In the above examples of the calories baked beans contain, we have used approximations.