BMI Calculator

Calculate Your Body Mass Index Quickly and Accurately

ages: 2 - 120
feet
inches
pounds

Result

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Enter your age, height and weight,
then click Calculate.

How to Understand Your BMI Result

BMI (Body Mass Index) is a simple measurement calculated from your weight and height. It is commonly used as a general screening tool to estimate whether an adult's weight falls within a healthy range.

For adults, a BMI below 18.5 is generally classified as underweight. A BMI from 18.5 to 24.9 is generally considered the healthy range. A BMI from 25 to 29.9 is classified as overweight, while a BMI of 30 or above falls into the obesity range.

The healthy weight range shown by this calculator is based on a BMI between 18.5 and 25. If your weight is below the calculated range, the result will show Underweight. If your weight is inside the range, it will show Healthy / Excellent. If your weight is above the range, your BMI will determine whether the result is Overweight or Obesity.

BMI is a general screening measurement and does not directly measure body fat, muscle mass, bone density, or overall health. For children and teenagers, BMI should be interpreted using age- and sex-specific growth charts rather than adult BMI categories.