There are 1 calories in 1 berry of Blueberries, raw. You’d need to walk 0 minutes to burn 1 calories. Visit CalorieKing to see calorie count and nutrient data for all portion sizes.
http://www.calorieking.com/foods/calories-in-fresh-fruits-blueberries-raw_f-ZmlkPTYzODI1.html