How many calories am i burning on the treadmill? speed is 4.5, distance is 2 miles, incline is 3.5. i'm 26 and 5' 2", 116 lbs

272 Calories: Well, crazy as it sounds, "yes" there is a formula for everything in this world and somebody who really gets into calculating these kinds of things even though they should either be spending more time with their wives or kids. According to: http://www.Shapesense.Com/fitness-exercise/calculators/running-calorie-burn-calculator.Aspx (i guessed your heartrate and % incline) you burned 272 cal.

Treadmill: The best way to know how much you are burning is to turn on the calorie burning mode on the treadmill. Unfortunately, your heart rate is a variable and at any given moment you lose an x amount of calories but it's dependent on your heart rate, so it's impossible to tell how much you will lose without having the calorie burning mode on which is part of most newer treadmills.