Calculators for Fitness & Health Here are some quick and useful tools to help you estimate your healthy body weight, target heart rate, amount of body fat and more. They will help you set exercise goals and educate you about your health. Body Mass Index Calculator Approximate how much body fat you have by simply entering your height and weight. Calorie Burner Counter Calculator Estimate how many calories your favorite activity burns. Target Heart Rate Calculator Know your target heart rate to help you get the most out of your exercise. Desirable Body Weight Calculator Enter your age and type of body frame to estimate your healthy body weight. Nutritional Needs Calculator Figure out how many calories you need to lose, maintain or gain weight. Waist to Hip Calculator Determine your body shape and find out what that shape means. Risky Drinking Answer a few questions to find out if you should seek professional help. Smoking Cessation Clear your thinking about smoking. © 1997- All rights reserved.