Below is a small application1 that will calculate your Basal Metabloic Rate, and you Daily Calorie Needs. It also calculates your Calorie intake in order to lose 1lb/week or gain 1lb/week2. Enjoy.
Losing 1lb/week is remove 500 Calories from your diet per day. Gaining 1lb/week is adding 500 Calories to your diet per day. 1lb of fat is 3500 Calories) [↩]