I used this:
http://www.freedieting.com/tools/calorie_calculator.htm
Made sure to eat a tad less than what the guide says for fat loss.. and have lost 36lbs in less than 4 months with no exercise.. down from a 36 waist to a 34, L to M shirts.. and a Centrum multivitamin.. Too lazy to exercise, only time for college and sleep..
congrats on the find!