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How BMI Impacts Your Health & How to Improve It

CalculatorBox Health Specialists
July 5, 2026
4 min read

Body Mass Index (BMI) is a universal standard tool used to estimate if a person has a healthy weight relative to their height. Here is how to understand your score.

BMI Categories Explained

According to the World Health Organization (WHO), the BMI ranges are:

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

Why BMI Matters

While BMI does not measure body fat percentage directly, it correlates closely with metabolic risks. Being in the overweight or obese category raises risks of chronic conditions like type-2 diabetes, hypertension, cardiovascular diseases, and joint strain.

Check your BMI instantly on the CalculatorBox BMI Calculator, and use our Calorie and Water calculators to plan your daily wellness routine.

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