Note: Figures are based on moderate (as opposed to vigorous) activity. A heavier person burns more calories, so the same amount of physical activity can actually burn the same number of calories but more quickly. But remember, exercising harder and faster only increases the calories expended slightly. To burn more calories it is better to exercise for a longer time.
Determining how many calories you burn is not an exact science. This number should only be used as an estimate of calorie expenditure.
Remember: this calculator is built to give you an idea of what you should be eating. Use it as a guide, but always see a nutritionist or a doctor if you plan to change your eating habits to make sure you're safe.