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BMI Calculator

BMI is a simple screening tool that uses height and weight to indicate possible health risks.

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About the BMI Calculator

BMI is a simple screening tool that uses height and weight to indicate possible health risks.

Calculate your Body Mass Index and understand your healthy weight range. This calculator is completely free β€” no sign-up, no email, no paywalls. Results are estimates; always verify with a qualified professional for high-stakes decisions.

Frequently Asked Questions

What is a healthy BMI?
18.5–24.9 is considered healthy. Under 18.5 = underweight; 25–29.9 = overweight; 30+ = obese.
Is BMI accurate?
BMI is a screening tool, not a diagnostic measure. It doesn't account for muscle mass, bone density, or fat distribution. Athletes may have high BMI but low body fat.
How do I lower my BMI?
A combination of caloric deficit (diet) and increased physical activity. Even a 5–10% weight loss improves health markers significantly.
What is the BMI formula?
BMI = Weight (kg) Γ· HeightΒ² (m). Imperial: BMI = 703 Γ— Weight (lbs) Γ· HeightΒ² (inches).

πŸ“‹ How to Use

  1. Enter your values in the fields above
  2. Click Calculate or press Enter
  3. View your instant results and chart
  4. Export to CSV or share your results