Short description of Basal Metabolic Rate Calculator 1.0: Basal Metabolic Rate Calculator is a software program for Windows. It allows you to calculate your BMR, the amount of energy your body spends while at rest to maintain vital body functions such as breathing, heartbeat and digestion. To calculate your Basal Metabolic Rate, enter your age, weight and height and then select your gender and activity level; BMR calculator will do the rest. Download Basal Metabolic Rate Calculator now.