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A calorie calculator is a tool used to specify the amount of daily calories someone needs. The calorie calculator is most often used to prevent weight gain or to simply maintain a current weight, as stated by Mayo Clinic.


Subtracting 500 to 1,000 calories from required calories per day indicates how many calories to consume to lose 1 to 2 pounds per week. One needs to consume 3,500 less per week to lose 1 pound or 7,000 less per week to lose 2 pounds.


Calorie Secrets states that 1 pound of fat is equal to 3,500 calories. Therefore, in order to lose 1 pound of body fat you must burn 3,500 more calories than what you consume.


Losing weight requires burning more calories than are taken in. Burning calories can be achieved in a few ways. Daily living, breathing and moving does burn calories, but for most, not enough to cause weight loss. Adding activities to the day is often needed if weight l...


A formula has been developed to help individuals determine how many calories someone needs to eat each day in order to start weight loss. This formula is: 655 plus (4.35 times weight in pounds) plus (4.7 times height in inches) and subtract (4.7 times age in years).


The number of calories required to lose weight depends on an individual's basic metabolic rate, writes Dr. Mike Roussell for Shape magazine. The BMR is the number of calories an individual needs to maintain her current weight. To lose weight, one should eat fewer calori...


Burning 500 more calories than eating each day for a week is a good way to lose 1 pound a week, according to WebMD. Eating less food and exercising are other ways to lose weight. Reducing starches and sodium reduces water retention and results in weight loss.