Question: how many calories do you burn in a 40 minute run?
Answer: Running for 40 Minutes Generally, you burn more calories when running compared to walking because your body has to do more work. Running at 5 mph for 40 minutes burns around 345 calories for a 125-pound person. Running at 7.5 mph burns 500 calories, and running at 8.6 mph burns around 580 calories.