I am 24 years old and i want to lose my weight , my health expert told me that if you eats fruits then its very good for your health, and i love to eat avocado, so please Can anyone tell me exactly how many calories in avocado? I should have been a little more specific. I need to know the exact amount because I am on a diet that requires strict calorie measurement. I can’t guess, or estimate, I have to know for sure.