Body

Body Mass Index (BMI) Calculator

Calculate your BMI based on height and weight to assess your health status.

Body Mass Index (BMI) Calculator

Calculate your BMI based on height and weight to assess your health status.

This calculator is for informational purposes only and does not constitute medical advice. Consult a healthcare professional for personalised guidance.

How This is Calculated

BMI = weight (kg) ÷ height² (m²). Developed by Adolphe Quetelet in 1832. The WHO classifies results as: Underweight (<18.5), Normal weight (18.5–24.9), Overweight (25–29.9), and Obese (≥30).

Disclaimer: This tool provides estimates for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

How to Use This Calculator

This calculator helps you determine your Body Mass Index (BMI) to assess whether your weight is within a healthy range for your height.

  1. Step 1: Enter your weight in kilograms.
  2. Step 2: Input your height in centimeters.
  3. Step 3: Click "Calculate BMI" to get your results.

Use this tool to monitor your health and understand whether you're underweight, normal weight, overweight, or obese.

Frequently Asked Questions

Your BMI classification indicates whether your weight is healthy for your height. Classifications include Underweight (<18.5), Normal Weight (18.5–24.9), Overweight (25–29.9), and Obesity (30+).

BMI is a general guideline but may not account for factors like muscle mass or body composition. Athletes with high muscle mass may have higher BMIs despite being healthy.

Checking your BMI periodically can help track changes in your weight and overall health. Monthly or quarterly checks are sufficient for most people.

Marcus Mueller
Created by Marcus Mueller Software Developer & Tech Specialist

Seasoned software developer and tech specialist, building tools that make people's life easier.

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Disclosure: We may earn a commission if you purchase through our links, at no extra cost to you. This supports our free tools.

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