The information you need can be found at:
http://www.ehow.com/how_5071440_determine-calories-needed-maintain-weight.html
Note: BMR = The answer to the calculation in step 1 of the website
This is also not 100% accurate as the exercise intensity per day is not specified. Unless you can find out how many calories you burn during exercise per day, you would not get an exact answer.
about 2000 calories
you should weigh 60 pounds
Yes, you should weigh 65-80 pounds.
About 6 foot 1
100 pounds at least maximum 125 pounds
87 pounds
i am 13 but also 5 foot you should weigh 80-100 pounds
i think it would probably weigh 50-70 pounds
about 30 pounds
About 250 pounds.
About 75lb- 125lb
You should way in your 85-100 pounds (: