Try running outside, it burns more calories, -- The Calorie Burning Difference. When it comes to burning calories, jogging outside is typically more challenging than running on a treadmill because of factors like rough terrain and wind resistance.
This means that at similar speeds and duration, jogging outside will burn more calories than running on a treadmill.
Plus when you've finished on the treadmill, you can just get off! wheres when your out running, you've got to run back home!