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. Also, BMR Calculator helps you learn your daily calorie need. To maintain your weight, you need to burn the same number of calories that you eat. If you eat 500 calories more than you spend every day, you gain a pound a week. If you spend 500 calories more than you eat every day, you lose a pound a week. 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.