1. I found this,it is a calculator,which should help me lose body fat.
2. But I think that 90 days is too long,I know I want to lose 10 and I won't lose them just in one month... I told myself,I want to be fit and okay,nad all the stuff I'm always talking about till March....
3. I'm not happy with those results. 1.) I don't know how many calories I burn when I workout
4.                                                     2.) 2153 calories is really big number for me
5.                                                   
6. 
   
7. How long do you have to lose some fat? (days)
8. How much fat do you want to lose? (kilograms)

Your Results

Your daily BMR (Basal Metabolic Rate) is 1,389 Calories.

Factoring in your activity level, your body uses an estimated 2,153 Calories per day.

To lose your desired amount of fat, you will need to burn a total of 77,161 Calories, which comes to 857 per day. So, you should aim to eat around 1,296 Calories per day