How many calories does an average 15-year-old burn in a day?

If I eat 1200 calories a day how much should I burn at the gym

• okay pretty much how I'm going to eat is breakfast: slice of toast 60 calories and a table spoon of peanut butter 90 calories. go to the gym idk how much calories I should burn that's the answer I'm trying to get then come back LUNCH: 400 calories of ANY TYPE of food then DINNER: 200 calories of ANY TYPE of food.. look I know this is low cause it's only like 800 calories but I wanna do 1200 calories a day the only thing is I'm afraid cause I already did that whole eating clean thing for the longest time and this time I just wanna eat low calories of any type of food and I been eating 800 calories for like a week now and I'm good with it I just wanna know how much should I burn at the gym? IM JUST STRESSED OUT TODAY CAUSE I WANNA LOSE 2/3 lbs EVERY WEEK and I don't wanna eat to much to make it to 1200 cause I don't feel like eating to much but I wanna lose weight I'm just confused I wish I could ask a personal trainer off the internet I tried but their not emailing me back and the people at the gym are stupid I don't like the staff so I can't ask them I bet they don't even know I just need the right answer.. SORRY I KNOW ITS LONG BUT IM STRESSING :/ I don't even need serious weight off me just a bit but I wanna lose 2 or 3 lbs every week cause I heard of diets like that but they match mine cause their saying eat 1200 calories while I'm eating 800 and I'm just fine with it but anyways all I wanna know is how much should I burn at the gym if I eat 800? thanks

• Answer:

  To lose two pounds a week, you should have a 2x3500 cal deficit per week. multiply your weight in pounds 100, subtract 7000, and that your weekly calorie budget. Now , multiply 1200 cal in per day times7. The difference between the intake calories and your budget is what you need to burn at the gym each week.