According to Leslie Sansone's Walk at Home website, you can burn approximately 100 calories per mile of walking without boosters and between 125 and 150 calories per mile as you walk with boosters.
Calories burned during any exercise can vary based on factors such as your age, weight, gender and fitness level. The calories you are able to burn as you use one of these videos also varies according to how much of the activity you complete. Leslie Sansone videos are varied, some including only 1 or 2 miles of walking and others including several miles of activity. Videos are available for advanced walkers who have built up endurance for long-distance activity, and beginning videos are also available for those just embarking on fitness programs.