The definition of injustice is something that is not fair or just. An example of injustice is when an innocent person is sent to jail for a crime he did not commit. the quality of being unjust or unfair; lack of justice. an unjust act; injury.
That means that you don't exercise on a regular basis. The calorie calculator may say that you need to eat 1,200 calories per day to lose weight. But you don't think that you can cut enough food from your diet to reach that number. That's okay.
The supplied calculations help you estimate how many calories you burn daily and how much you can eat to maintain your weight. If you want to lose weight, conventional advice is to trim 500 to 1,000 calories from what you burn daily. This size calorie deficit yields a manageable loss of 1 to 2 pounds per week, since one pound equals 3,500 calories. So, if you determine you burn 2,400 calories per day, you need between 1,400 and 1,900 calories per day to lose weight.