BMI Formula:
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Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It's a simple, inexpensive screening method for weight category—underweight, healthy weight, overweight, and obesity.
The calculator uses the standard BMI formula:
For individuals with high muscle mass, the calculator provides an adjusted calculation that accounts for the fact that muscle weighs more than fat.
Details: BMI provides a useful population-level measure of overweight and obesity. It's a quick screening tool to identify potential weight problems in adults.
Tips: Enter weight in kilograms and height in meters. Select whether you want a standard calculation or one adjusted for high muscle mass.
Q1: Why adjust BMI for muscle mass?
A: Muscle is denser than fat, so athletes and muscular individuals may have a high BMI without excess body fat.
Q2: What are normal BMI values?
A: Underweight: <18.5, Normal weight: 18.5-24.9, Overweight: 25-29.9, Obese: ≥30
Q3: What are the limitations of BMI?
A: BMI doesn't directly measure body fat and doesn't account for muscle mass, bone density, or fat distribution.
Q4: Should athletes use standard BMI?
A: Athletes with high muscle mass should consider using the adjusted calculation or alternative measurements.
Q5: Is BMI accurate for everyone?
A: BMI may overestimate body fat in athletes and underestimate it in older people with less muscle mass.