How many calories do you burn when you run?

To work out how many calories you burn in a mile use the following formula:

Weight in Kg  times 0.789 less [ 1 for a man; 2 for a woman] times 7.634 plus 51.109.

In my case this is 80 times 0.789 less 0.7636 plus 51.109 equals 107 calories per mile.

To keep it simple I burn about 100 calories a mile. I will check this with my Garmin. So what does 100 calories of food look like?

A small banana