BMI (Body Mass Index) Calculator

The BMI Calculator estimates body mass index using height and weight. It helps identify underweight, normal, overweight, and obese categories. It’s widely used as a quick screening tool but is not a substitute for professional medical advice.

Formula

BMI = weight(kg) ÷ [height(m)]2 | BMI = 703 × weight(lb) ÷ [height(in)]2

  • weight — Weight in kilograms or pounds
  • height — Height in meters or inches

Example Calculation

Weight = 70 kg, Height = 1.75 m

Result: BMI ≈ 22.86 (Normal)

Practical Uses

  • Quick self-check
  • Fitness/diet tracking
  • Education/schools

FAQs

Is BMI accurate?
It’s a simple screening tool, not a medical diagnosis.
What are BMI ranges?
Under 18.5: underweight, 18.5–24.9: normal, 25–29.9: overweight, 30+: obese.
Can I use lbs/inch?
Yes, both metric and US units are supported.

Disclaimer

Informational only. Consult a doctor for personal health guidance.