About BMI Calculator
The Body Mass Index (BMI) Calculator provides a quick assessment of your weight relative to your height using the standard formula of weight divided by height squared. BMI is a screening tool developed over a century ago and remains widely used by healthcare professionals to categorize individuals into underweight, normal weight, overweight, and obese ranges according to World Health Organization guidelines. This calculator helps you understand where you fall on the BMI spectrum and displays the healthy weight range for your height. While BMI is a useful population-level metric that correlates with body fatness and health risks, it has important limitations. It does not distinguish between muscle and fat mass, meaning athletic individuals with high muscle mass may register as overweight despite being lean. It also does not account for fat distribution, age, sex, or ethnic differences in body composition. Use your BMI as one data point in a broader health assessment that includes other measurements like waist circumference, body fat percentage, and overall lifestyle factors.