An average woman should have 1500 calories a day. However both lifestyle and and other factors such as height affect this. If you want an accurate view of how many calories you should consume a day it is best to seek advice from your GP or a dietitian.
How many calories a woman should take in each day varies depending on how much energy she requires or exercise she does each day. On average, a woman could take in about 1800 calories per day to maintain her weight with an average amount of exercise.
He/she is still young and should at least get 2000 calories a day. As they get older, the calories will lower. By the time he/she is 12 or 13 years old, they should only get a take in of only 1200 to 1500 calories.