Method to determine basal metabolic rate; developed in 1919. Uses gender, age, height, and weight. Probably overestimates basal energy needs by 20-30%. For males Kcal = 66 + (13.7 x weight) + (5 x height) Ð 6.8 (age x 2). For females Kcal = 66.5 + (9.6 x weight) + (1.7 x height) Ð 4.7 (age x 2). Age is in years, height is in ??, and weight is in ??