With the daily caloric intake can be determined how many calories are needed by our body.
If we want to lose weight, we should keep our daily caloric intake below this value, and if we want to gain weight, we should keep our daily caloric intake above this value.
For the calculation, we use the formula and classification, which is recommended by the WHO – World Health Organization.

To calculate how many calories our body needs, we must first determine the BMR, our value of metabolism. The World Health Organization uses the Harris-Benedict formula.

This is different for men and women:
- Men: 88.3 + (13.4 x body weight [kg]) + (4.8 x height [cm]) - (5.7 x age [years])
- Women: 447.6 + (9.2 x body weight [kg]) + (3 x height [cm]) - (4.3 x age [years])

The obtained value must be multiplied by a value depending on our physical activity:
- For sedentary (little or no exercise/sport) physical activity: Daily caloric intake = BMR x 1.2
- Lightly active (light exercise/sport 1-3 times a week or mostly sedentary work or little physical work): Daily caloric intake = BMR x 1.375
- Moderately active (moderate exercise/sport 3-5 times a week or partly physical work) physical activity: Daily caloric intake = BMR x 1.55
- Very active (hard exercise/sport 6-7 times a week or standing work or walking work) physical activity: Daily caloric intake = BMR x 1.725
- Extra active (very hard exercise/sports twice a day or heavy physical work) physical activity: Daily caloric intake = BMR x 1.9

The end result shows how many calories are needed for our body to maintain our current body weight.

The calculator can be used between ages of 18-65!
The calculator cannot be used in the case of muscle builders, long distance athletes and pregnant women!