To keep your weight the same, you need to take in as many calories as you use. The average human body uses about 60 calories an hour when at rest, and a superb athlete can use more than 1,000 calories an hour while exercising. When you are starving or trying to lose weight, the body compensates by using less energy. So the minimum number of calories is about 1500. Maximum is about 7000 (an active lumberjack in cold weather.) Most people want to lose weight, while others want to gain weight. Therefore there is a different number for different people, depending on how active they are and whether they want to stay the same weight. A typical man of 195 pounds with a moderately active lifestyle wanting to maintain the same weight will consume about 2400 calories per day.
2000
You consume about 3,500 calories in 1 pound of your own body fat.
3,500 more than you consume on a dialy average.
You should consume seven calories per pound to lose weight, so 1655 calories per day.
Kids should consume 2,000 calories everyday, but if they are athletic and like to exercise a lot, then they should consume 2,500 calories everyday.
If you calculate your BMR this will tell you how many calories your body needs a day to maintain its weight. If you then consume 500 extra calories a day for a full week you should gain around a pound in weight. So I would say the answer is 3500 calories.
You would have to consume 1200 calories and do regular exercises to lose the weight you desire
It depends on what weight you want to be at, your activity level and your age.
2155 Calories
About 1200 calories
1890 a day
A pound of fat is generally around 3500 calories, so to lose a pound of fat a week you would need to lose 500 calories a day