It changes so much as growth spurts come and go. There will be times when they are ravenous, others when he will want to eat very little. It is mainly important that he gets 40-50% of his calories from fat, which is important to keep well nourished.
A nine year old boy should eat about 2,200 calories
An 14 years old Boy who is growing should have 2000-2300 calories per day, however if you are eating less you will not be so tall
Going by calories, a thirteen year old boy should eat about 2200 calories a day.
uuhh 2000 calories i think unless you play sports then its a bit more
1,000,000,000,000
An 11-year-old girl who leads a sedentary life is advised to consume approximately 1,600 calories per day. A much more active 11-year-old girl should consume 2,200 calories daily. An inactive boy of the same age should consume about 1,800 calories per day, while an active 11-year-old boy should consume 2,600 calories per day.
http://www.kidsnutrition.org/bodycomp/energy/energyneeds_calculator.htm
A growing boy needs to eat and not worry about calories!
about 1880 a 11 year old boy needs 4000 calories means you should take 1 kg of wheat and fibre to ensure u stay healthy. prune juice also helps
3,000
A 7-year-old boy or girl needs 1,200 to 1,800 calories daily.
A child,on average, should intake about 1790kcal per day hope this helps