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BMI Explained

A simple guide to what BMI means, how to calculate it, and how to understand your result.

What is BMI?

BMI Explained

What Is BMI?

Body Mass Index (BMI) is a quick way to estimate whether your weight is in a healthy range for your height. It doesn’t measure body fat directly, but it gives a useful starting point for understanding general health.

How to Calculate Your BMI

BMI uses a simple formula:

 

BMI = weight (kg) ÷ height (m)²

 

Examples:

  • If you weigh 70 kg and are 1.75 m tall: BMI = 70 ÷ (1.75 × 1.75)

If you prefer pounds and inches, most calculators convert automatically.

BMI Categories

  • Underweight: below 18.5
  • Normal weight: 18.5–24.9
  • Overweight: 25–29.9
  • Obesity: 30 or higher

These ranges help you understand where your number falls.

What BMI Can Tell You

BMI is useful for:

  • spotting general weight trends
  • comparing your weight to population standards
  • starting conversations about health

What BMI Cannot Tell You

BMI does not measure:

  • muscle mass
  • body fat percentage
  • body shape
  • age‑related differences
  • fitness level

This means athletes, muscular people, and older adults may get misleading results.

Calculate Your BMI

If you want to check your BMI quickly, you can use the :

It’s simple, accurate, and based on official health guidelines.

Disclaimer
SlimHub provides general health and nutrition information for educational purposes only. It is not medical advice and should not replace guidance from a licensed healthcare professional. Always consult a qualified provider before making changes to your diet, exercise routine, or health practices. SlimHub is not responsible for any actions, decisions, or outcomes based on the use of this content.

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