SuperCalc

Normal BMI Range

A BMI between 18.5 and 24.9 is classified as normal (healthy) weight. This range is associated with the lowest statistical risk of weight-related diseases including heart disease, type 2 diabetes, and hypertension. Most public health guidelines recommend maintaining a BMI within this window. Enter your height and weight below to see where you stand — and how far from the boundaries you are.

BMI Calculator

Enter your height and weight to calculate your Body Mass Index.

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kg

BMI Categories

WHO classification of Body Mass Index ranges.

CategoryBMI Range
Underweight
< 18.5
Normal
18.5 – 24.9
Overweight
25 – 29.9
Obese I
30 – 34.9
Obese II
35 – 39.9
Obese III
40+

Frequently Asked Questions

What is the normal BMI range?
18.5 to 24.9. This range was established by the WHO based on large population studies linking BMI to health outcomes. It applies to adults of all sexes, though individual interpretation should consider muscle mass, age, and ethnicity.
What is the most ideal BMI number?
Studies suggest the lowest all-cause mortality occurs around BMI 22–25. Some research points to 22 as optimal for Asian populations and 24–25 for European populations. There's no single 'perfect' number — it depends on your body composition and health markers.
Can I be normal BMI but still unhealthy?
Yes. 'Normal weight obesity' or 'skinny fat' describes people with normal BMI but high body fat and low muscle mass. They may have elevated blood sugar, cholesterol, or blood pressure. Regular exercise, especially strength training, and good nutrition are important regardless of BMI.

Medical disclaimer: BMI is a screening tool, not a medical diagnosis. It does not measure body fat directly and does not account for muscle mass, bone density, age, sex, or ethnicity. Consult a healthcare provider for personalized health advice.

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