BMI Calculator

Your BMI Result

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History

About BMI Calculator

The BMI Calculator helps you calculate your Body Mass Index using your height and weight. It is useful for checking whether your body weight is underweight, normal, overweight or obese.

Introduction

The BMI Calculator is a simple health calculator that estimates body fat category based on height and weight. It gives a quick result and helps users understand their general weight status.

What is BMI?

BMI stands for Body Mass Index. It is a commonly used measurement that compares a person's weight with their height. It is not a complete medical diagnosis, but it is useful for basic health awareness.

BMI Formula

BMI = Weight (kg) ÷ Height² (m²)

The calculator converts height from centimeters to meters and then applies the BMI formula to generate the final BMI value.

BMI Categories

  • Below 18.5: Underweight
  • 18.5 to 24.9: Normal Weight
  • 25 to 29.9: Overweight
  • 30 and above: Obese

How to Use the BMI Calculator

  • Enter your weight in kilograms.
  • Enter your height in centimeters.
  • Click the Calculate button.
  • Your BMI value and weight category will appear instantly.

Features of the BMI Calculator

  • Calculates BMI instantly
  • Shows BMI category clearly
  • Saves recent BMI calculations in history
  • Simple and mobile-friendly interface
  • Useful for basic fitness and health tracking

Important Note

BMI is a general indicator and may not be accurate for athletes, children, elderly people, pregnant women or people with high muscle mass. For medical advice, always consult a qualified healthcare professional.

Advantages

  • Helps understand basic weight category
  • Fast and easy to use
  • Reduces manual calculation errors
  • Works directly in the browser without installation

Technologies Used

This calculator is developed using HTML for structure, CSS for design and JavaScript for BMI calculation, result display and browser-based history storage.