If you want to calculate your basal metabolic rate, you should try using the Harris-Benedict equation21. The information you'll need is your current weight, height, age, and sex. In addition, there are two different formulas. One is to be used by men and the other by women.  For men: BMR = 66.5 + (13.75 × weight in kg) + (5.003 × height in cm) - (6.75 × age) For women: BMR = 655.1 + (9.563 × weight in kg) + (1.850 × height in cm) - (4.676 × age)