You can go to www.prevention.com and there are tools that will calculate your recommended daily calorie intake based on your height, current weight, etc. It will also let you know how many calories you need to take in to lose a pound or two per day/week.
Daily recommended calorie intake is different in both male and female and dependent upon basic metabolic rate and daily activities. By calculating basal metabolic rate, you can calculate amount of calories required in each day. You can calculate BMR by formula BMR for Men=66+(13.7 X wt in kg)+(5 X ht in cm)-(6.8X age in years) BMR for women =655+(9.6 X wt in kg)+(1.8 X ht in cm)-(4.7 X age in years). Now multiply your BMR with activity multiplier. Sedentary = BMR X 1.2, Lightly active = BMR X 1.375, Moderate Active = BMR X 1.55, Very active = BMR X 1.725, Extraordinary active = BMR X 1.9. In this way you can calculate your daily calories requirements. If you want to reduce or increase weight then put your desired weight in the weight space of the BMR formula.
