FAQs

❓ Frequently Asked Questions (FAQs)

Welcome to our FAQ section. Here, you’ll find answers to the most common questions about the Body Mass Index (BMI), how our calculator works, and how to understand your results.

Understanding the Calculator & Your Results

1. What is BMI and how is it calculated on your website?

BMI, or Body Mass Index, is a measurement that uses your weight and height to estimate if you are underweight, a healthy weight, overweight, or obese. Our calculator uses the standard formula developed by Adolphe Quetelet:

The calculation is performed instantly on your device and the result is displayed immediately.

2. Do you store the height and weight I input into the calculator?

No. We do not store, save, or track the specific height, weight, age, or gender data you enter into the calculator. The data is used solely for the instant calculation on your screen. Your privacy is a top priority. For more details, please review our Privacy Policy.

3. What are the standard BMI ranges used by this calculator?

Our calculator uses the globally accepted standard categories established by the World Health Organization (WHO) and the Centers for Disease Control (CDC):

  • Underweight: Below 18.5
  • Normal (Healthy) Weight: 18.5 to 24.9
  • Overweight: 25.0 to 29.9
  • Obese: 30.0 and above

4. Can I use the calculator if I only know my height in feet/inches?

Yes! Our calculator is designed to be user-friendly and accepts both Imperial Units (feet, inches, and pounds) and Metric Units (meters and kilograms). Simply select your preferred unit system before entering your data.

Medical & Health Context

5. Is a BMI calculation considered medical advice?

No, a BMI calculation is not medical advice. The result from our tool is for informational and screening purposes only. It provides a general assessment of weight status. You should always discuss your BMI result and overall health with a qualified healthcare professional.

6. My BMI says I’m overweight, but I lift weights. Is the result accurate for me?

For highly muscular individuals, the BMI can be misleading. Because muscle weighs more than fat, your BMI may categorize you as “overweight” even if your body fat percentage is low. If this applies to you, you should discuss alternative metrics (like body fat percentage or waist circumference) with a doctor.

7. Does age and gender affect the standard adult BMI interpretation?

For adults (age 20 and over), the standard BMI categories are the same for all ages and genders. However, age and gender are crucial factors for interpreting the results for children and teenagers (ages 2-19), who use a separate “BMI-for-Age Percentile” chart. Our tool provides the adult calculation only.

8. How often should I check my BMI?

If you are maintaining a stable weight, checking your BMI once every 3–6 months is generally sufficient. If you are actively trying to gain or lose weight, you might check more frequently to monitor your progress, but remember to focus on sustainable, long-term trends rather than daily fluctuations.

Website Support

9. I found a broken link or an error on the website. Who should I contact?

We appreciate your help in keeping our site running smoothly! Please report any technical issues, broken links, or suggestions directly to us via email or our contact form:

10. Does this website comply with privacy regulations?

Yes, we are committed to compliance with applicable privacy regulations. Our website utilizes standard cookies for analytics and advertising (Google AdSense). You can find comprehensive details on how we handle data and your user rights in our official Privacy Policy.