What is Body Mass Index (BMI)?

BMI is a simple measurement of body fat based on height and weight that applies to adult men and women to determine if they fall into underweight, normal weight, overweight, or obese ranges.

What is a healthy BMI range?

For adults, a healthy BMI range is between 18.5 and 24.9. A BMI below 18.5 is considered underweight, 25 to 29.9 is overweight, and 30 or above is classified as obese.

Calculator Hub

BMI Calculator

Find your Body Mass Index (BMI) instantly. Our free BMI calculator handles both metric and imperial units for adults, showing weight status categories.

BMI Metric / Imperial Widget

Height (cm)

Weight (kg)

Age (Years)

Gender

Male Female

Calculation Result

Enter inputs above and click Calculate to view results.

Related Calculators

Calorie Calculator Estimate daily energy expenditure rates.
Age Calculator Check chronological age and birth details.

About BMI Calculator

The BMI Calculator computes your Body Mass Index score, which estimates body fat based on height and weight. BMI provides a general indicator of whether your weight falls into healthy categories established by the World Health Organization (WHO).

BMI Weight Classifications:

BMI Range	Classification
Below 18.5	Underweight
18.5 – 24.9	Normal (Healthy Weight)
25.0 – 29.9	Overweight
30.0 and above	Obese

BMI Metric / Imperial Widget

Calculation Result

Related Calculators

About BMI Calculator

BMI Weight Classifications:

Frequently Asked Questions