Shoot for 1-1.5 times your BMR

Just to be clear - does this mean that if your BMR calls for 1200/day you should not eat more than 1800 when exercising? I am running and have not increased what I eat and have started eating better (because I really need to fuel the machine properly) and weight loss is barely in evidence. I have also found that I only burn 95-100 calories/hour of running. Can't even tell you how sad it makes me that running for an hour is barely worth a piece of toast but there you have it. I'm not discouraged because I think what your body does with food when you are active is different than what it does when you are sedentary but I must say I did have my illusions pretty soundly shattered.

MPF

here are a bunch of BMR calculators from the interesting to the really straight forward

http://www.hussman.org/fitness/bmrcalc.htm

http://www.bmi-calculator.net/bmr-calculator/