In order to burn 1,000 calories, create a calorie deficit by expending more calories than your body needs for fuel. Moving more and increasing physical activity is the best way to burn calories, according to WebMD. Strength training is also a recommended way to burn additional calories.
The more vigorous the exercise and the more time spent working out, the more calories burned. The body burns calories to fuel exercise, even if the exercise is just a brisk walk. After a workout has ended, the body keeps burning calories because its metabolic rate is elevated for at least the 24 hours following the workout.
There are 3,500 calories in 1 lb., so to lose 1 lb., 3,500 calories more than the caloric intake required by the body must be burned, according to Mayo Clinic. Using this formula, cutting around 500 calories from the diet or burning 500 calories more than the body needs can lead to weight loss of around a pound each week, considering 7 days in a week multiplied by a calorie deficit of 500 calories per day. Cutting 1,000 calories from the diet or burning an additional 1,000 calories each day over the same time frame should yield a weight loss of 2 lbs. per week.