How do you  calculate formula calories?
 The equation for males is: 66.5 + 13.8 x (Weight in kg) + 5 x (Height in cm); 6.8 x age. The equation for females is: 655.1 + 9.6 x (Weight in kg) + 1.9 x (Height in cm); 4.7 x age. These equations are then multiplied by an energy factor to determining estimated caloric needs. 