BMI Calculator

Body mass index with healthy range interpretation. BMI = weight(kg) / (height(m) ^ 2) ; Imperial: BMI = 703 * weight(lbs) / (height(in) ^ 2) ; Healthy weight range calculated using BMI 18.5 and 24.9 . HOW IT WORKS No. It is less reliable for athletes, older adults, pregnant women and children (who use age-adjusted percentile charts instead). Validation: Must handle zero or negative inputs; Must handle extreme values (e.g., height > 300cm); Warns that BMI does not account for muscle mass, age or body composition