How many caleries do you burn if you run a mile?

It's generally around 100 calories per mile, give or take a few calories. This is thought to be pretty much constant no matter what your pace is, as long as you are running the whole mile. If walking a mile, it goes down to about 70 calories per mile unless you are race walking. That said, I run 20+ miles per week and still haven't lost any weight yet.