How Many Calories Do I Burn

I'm confused on how many calories I burn each day. I am 15 and 5'9.5''. I want to lose 8 pounds!!!!

I go to school

I am on tennis---we usually run, and hit balls for 2 hours. I'd say 300-500 calorie burn each day.

What is my burn rate??

you can try adding on your activites an entire day. Like the day has 1440 minutes, so 480 min of sleep + 120 min tennis + 360 min sitting in class etc etc til it add to 1440 min and you'll have you results.