BMR calculator Formula:
   Woman: BMR = 655 + 4.35 × w + 4.7 × h - 4.7 × age
   Man: BMR = 66 + 6.23 × w + 12.7 × h - 6.8 × age
Where:
   h: Body height, in inches
   w: Body weight, in pounds (lbs)
   age: in years
   BMR: Basal Metabolic Rate, in calories