βš–οΈ Age-adjusted BMI

Body mass index with age-adapted interpretation.

⚠️ BMI doesn't distinguish between muscle and fat. Athletes can have high BMI without being obese. Consult a doctor for personalized evaluation.

How it works

BMI (Body Mass Index) = weight (kg) / heightΒ² (mΒ²). WHO categories: underweight <18.5, normal 18.5–24.9, overweight 25.0–29.9, obese β‰₯30. For older adults, the "normal" range is interpreted differently - a small fat reserve is beneficial.

Fun facts

  • BMI was invented in 1832 by Adolphe Quetelet, a Belgian statistician - not a doctor.
  • Two athletes with the same BMI can have completely different body compositions - that\'s why DEXA scans are more precise.
  • Optimal heart rate for exercise - see Heart rate by age.