BMI Calculator

Calculate your Body Mass Index and discover your health status instantly

cm
100 cm250 cm
kg
30 kg200 kg

What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women.

BMI is a screening tool that can indicate whether a person is underweight, normal weight, overweight, or obese. However, it should not be used as a diagnostic tool.

Formula: BMI = weight (kg) / [height (m)]²

BMI Categories

Underweight< 18.5
Normal weight18.5 - 24.9
Overweight25 - 29.9
Obese (Class I)30 - 34.9
Obese (Class II)35 - 39.9
Obese (Class III)≥ 40

Understanding Your BMI Results

The BMI calculator is a valuable tool for assessing whether you're at a healthy weight for your height. While BMI doesn't directly measure body fat, research shows it correlates with direct measures of body fat.

How to Use This BMI Calculator

  1. Select your preferred unit system (Metric or Imperial)
  2. Enter your height and weight
  3. Click "Calculate BMI" to see your results instantly
  4. Review your BMI category and personalized recommendations

Is BMI Accurate?

BMI is a useful indicator for most people, but it has limitations. It doesn't account for muscle mass, bone density, overall body composition, or racial and sex differences. Athletes and bodybuilders may have a high BMI due to muscle mass rather than fat.

Why Calculate Your BMI?

  • Quick health screening tool
  • Track weight management progress
  • Identify potential health risks
  • Set realistic fitness goals
  • Monitor changes over time

Disclaimer: This BMI calculator is for informational purposes only and should not replace professional medical advice. Always consult with a healthcare provider for personalized health recommendations.