Understanding Your BMI Result

Body Mass Index (BMI) is a widely used measure that uses your height and weight to determine if your weight is healthy. It's a simple screening method to help identify weight categories that may lead to health problems.

How is BMI Calculated?

The formula for BMI depends on the units used:

• Metric Units: BMI = weight (kg) / [height (m)]²
• Imperial Units: BMI = 703 × weight (lbs) / [height (in)]²

Our calculator handles these conversions for you automatically.

Standard BMI Categories

The World Health Organization (WHO) defines the following standard weight status categories for adults:

• Below 18.5: Underweight
• 18.5 – 24.9: Normal Weight
• 25.0 – 29.9: Overweight
• 30.0 and Above: Obese

Limitations of BMI

While BMI is a useful indicator for the general population, it has some limitations. It does not distinguish between fat and muscle mass. Therefore, very muscular individuals, like athletes, may have a high BMI that incorrectly categorizes them as overweight or obese. Similarly, it may not be an accurate measure for older adults who have lost muscle mass. Always consult with a healthcare professional to get a complete picture of your health status.