Calculate your Body Mass Index quickly with support for both metric and imperial measurements. Enter your height and weight in centimeters and kilograms or inches and pounds, and the app instantly computes your BMI and classifies it as underweight, healthy, overweight, or obese according to standard thresholds. It also calculates your healthy weight range so you know exactly how much you would need to gain or lose to reach an ideal BMI. Save multiple entries to track progress over time or compare results for different people.