On one hand I really like this because it goes into detail and provides you the formula and and an example to compute your various needs. My big problem with this is that you have to do all this math yourself which for a person like me that is math challenged, is a big problem. I wish they had made it where you could enter in all your information and then they compute your calories using your age, gender, weight, height, goal weight and fitness goals. This site is a great site and I have gave 5 stars to the free online diet program it offers. If you haven't tried it out I highly recommend it.

This article explains how values such as the BMI and the basal metabolic rate are calculated, and teaches you how to calculate them yourself, using helpful examples along the way. Some info is specific to the SparkPeople program, and isn't really relevant to those not on it, but most of the article is universally applicable.