How long should I run on the treadmill for weight loss?

In order to effectively lose weight on the treadmill, workouts should be between 20-45 minutes long, depending on your fitness level, routine, endurance, and current weight. For example, a HIIT treadmill workout (High Intensity Interval Training) involves intervals of high speed, followed by active recovery intervals.

If your goal is weight loss, High-intensity interval training (HIIT) should be incorporated into your treadmill routine. HIIT is a popular type of exercise that combines short bursts of high-speed runs with intermittent rest breaks. Interval training is effective in burning a high number of calories in a shorter period of time. 

If you are starting out with HIIT training, a 10-minute session is a good starting length. As you gain confidence increase your duration to 15-20 minutes. Since a HIIT workout requires you to work harder and exert more energy, you’ll want to keep these workouts shorter at maximum of 20 minutes. The intervals themselves should involve running for a minute at a high speed then slowing down to a walk for 1 minute, then repeating for 10-20 minutes. If this interval is too difficult try completing a 30 second run and 2-minute walk. Slowly increasing the running intervals will help you improve your stamina so you can shed more calories in your workout. Due to the high impact nature of HIIT workouts it is common for people to overdo it, completing a HIIT workout 3-4 times per week will offer fantastic weight loss results.