how many miles do you have to walk to burn
A long distance walk will require many more. Your weight x distance = energy used walking. Time does not matter as much as distance. If you speed up to walking a mile in 13 minutes or less, you will be burning more calories per mile. But for most beginning walkers, it is best to increase the distance before working on speed. A simple rule of thumb is 100 calories per mile for a 180 pound person.
Practice proper walking technique by swinging your arms, tightening your stomach muscles and tucking your pelvis in. Keep your feet at about shoulder-width apart and look ahead of you about 15 to 20 feet. How long you need to walk to burn 500 calories depends on your body weight and your intensity level. According to the Physical Activity Calorie Counter on the American Council of Exercise website, a 180-pound person needs to walk at a moderate, 3 mile-per-hour pace for one hour and 50 minutes to burn nearly 500 calories.