BMI Calculator

About This Calculator

This BMI (Body Mass Index) calculator helps you determine if you have a healthy body weight for your height. BMI is a measure of body fat based on height and weight that applies to adult men and women.

Your BMI Result

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Your BMI

Underweight Normal Overweight Obese

How to Use This Calculator

  1. Enter your height in centimeters or inches.
  2. Enter your weight in kilograms or pounds.
  3. Enter your age in years.
  4. Select your gender.
  5. Click the "Calculate BMI" button to see your result.
  6. Use the "Reset" button to clear all inputs and start over.

BMI Information

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It's a useful indicator of whether you're at a healthy weight for your height.

BMI Categories

  • Underweight: BMI less than 18.5
  • Normal weight: BMI between 18.5 and 24.9
  • Overweight: BMI between 25 and 29.9
  • Obese: BMI 30 or greater

Formula Used

The formula used in this calculator is:

BMI = weight (kg) / (height (m))²

For imperial units (inches and pounds):

BMI = (weight (lbs) / (height (in))²) × 703

Frequently Asked Questions

BMI (Body Mass Index) is a measure of body fat based on height and weight that applies to adult men and women. It's calculated by dividing a person's weight in kilograms by the square of their height in meters. BMI is a simple way to assess if a person has a healthy body weight for their height.

While BMI is a useful indicator of healthy body weight, it has limitations. It doesn't account for factors like muscle mass, bone density, overall body composition, and racial and sex differences. For a more comprehensive assessment of health, consider consulting with a healthcare provider who can evaluate multiple factors.

If your BMI is outside the normal range, it's important to consult with a healthcare provider. They can provide personalized advice based on your overall health, medical history, and lifestyle. For those who are underweight, a balanced diet with appropriate caloric intake may be recommended. For those who are overweight or obese, a combination of healthy eating, regular physical activity, and possibly medical intervention may be suggested.