Use our free body fat calculator to estimate body fat percentage, lean body mass, and overall body composition in seconds. This easy-to-use fitness and wellness tool uses the trusted U.S. Navy circumference formula to help individuals better understand body fat levels, weight management progress, and healthy fitness goals.

Simply enter your age, gender, height, weight, neck, waist, and hip measurements (for women) to receive fast body composition estimates, including body fat percentage, fat mass, and lean mass calculations. Supports both US (ft/in, lb) and Metric (cm, kg) units for convenient health tracking and wellness monitoring.

Perfect for fitness enthusiasts, weight loss journeys, muscle-building goals, and individuals focused on improving overall health and body composition awareness.