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BMI Calculator

Calculate your Body Mass Index and understand what it means.

BMI Calculator

What Is the BMI Calculator?

Body Mass Index (BMI) is a simple measurement that estimates body fat based on your height and weight. While not a perfect health metric, it is a useful starting point for understanding your general health category.

The Formula

BMI = weight(kg) / height(m)2. For imperial: BMI = (weight(lb) / height(in)2) x 703.

Example

A person standing 5 foot 10 inches (178 cm) and weighing 175 pounds (79 kg) has a BMI of 25.1, sitting at the overweight boundary. At 155 pounds (70 kg), that same person would have a BMI of 22.2, which falls within the healthy weight range.

Common Uses

Health assessment, fitness tracking, medical screenings, insurance evaluations.

Frequently Asked Questions

How does the BMI Calculator work?

The BMI Calculator uses standard medical formulas based on peer-reviewed research. Enter your measurements and the calculator provides your results instantly with reference ranges and explanations.

Is this calculator a substitute for medical advice?

No, this calculator provides estimates for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a healthcare provider for medical decisions.

How accurate are health calculators?

Health calculators provide estimates based on population averages. Individual results vary based on genetics, body composition, and other factors. These are useful screening aids, not diagnostic tools.

Common Mistakes to Avoid

  • Treating calculator results as medical diagnoses rather than estimates.
  • Using results as a substitute for professional medical consultation.
  • Not considering individual factors like genetics and medical history.