Enter the calories eaten today and then click save. See the Ideal Weight Range Calculator and also the Calories Burned Per Day Calculator. A 3500 calorie deficit per week should decrease weight by 1 pound per week. Press "Save" to add new calories; "Get Info" to fill in prior total calories; and press "Clear" to clear this data from the device. If you've been here before, enter the new calories, and it will be automatically added to the prior saved calories and the new total will be displayed. No information is sent to other computers. It is stored locally on your device. This page can store information on iPhones, Android phones, and advanced desktop browsers like Chrome.