BMI Calculator

Calculate your Body Mass Index with metric or imperial units.

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cm

What is BMI (Body Mass Index)?

Body Mass Index (BMI) is a simple measurement used to categorize people into weight groups based on their height and weight. It is a widely used indicator for assessing whether an individual is at a healthy weight for their stature.

While BMI is a helpful screening tool, it is important to note that it does not directly measure body fat or distinguish between muscle and fat mass. Therefore, it should be used as one of many indicators of overall health.

How to Calculate Your BMI

  1. Select your unit system: Choose between Metric (kilograms and centimeters) or Imperial (pounds and inches).
  2. Enter your weight: Provide your current weight in the specified unit.
  3. Enter your height: Provide your height in the specified unit.
  4. Get your result: Click "Calculate BMI" to see your score and health category.

Understanding BMI Categories

The following categories are based on standard WHO (World Health Organization) guidelines:

Common Use Cases for BMI

Frequently Asked Questions

Is BMI accurate for athletes?

BMI may not be highly accurate for very muscular individuals. Because muscle is denser than fat, athletes often have a higher BMI despite having low body fat percentages.

Does BMI account for age and gender?

The standard BMI formula does not directly account for age or gender, though these factors are important for a full health assessment. For children and teens, BMI is interpreted differently using age-and-gender-specific percentiles.

Disclaimer: Is this a medical diagnosis?

No. Our BMI calculator is for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.