Question: how many hours do you have to run to lose weight?
Answer: Dorfman notes that most runners overestimate their calorie expenditure for running and over-consume calories. “Figure the average 150-pound runner requires 1,500–2,000 calories a day, 1,500–1,700 if trying to lose a few pounds, and expends between 300–600 calories a run for the average-paced, 30–60 minute session.