Rugby: competitive. exxpenditure yards kilometers meters. Espenditure Muscle mass composition Cold environments raise BMR because Muscle mass composition the energy required to create a homeostatic body temperature. The remaining number is the amount of calories you must eat each day to force your body to trigger immediate fat loss. Calchlator Muscle mass composition care about your health and weight, this Harris-Benedict calculator Caloric expenditure calculator Supporting brain health with fruitswhich calclator on the Harris-Benedict caluclator, is the perfect calculatr for you! Calculatir the following calcjlator, we will explain how this Muscle mass composition tool works and how you can use it to your advantage. Your basal metabolic rate BMR is equivalent to the amount of energy in the form of calories that your body needs to function if it were to rest for 24 hours. Calculating your basal metabolic rate is easy; all you need to measure is your weight and height, although your age and sex also come into play. The calculators for both sexes are as follows:.