BMI Formula:
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BMI is a measure of body fat based on height and weight that applies to adult men and women. It provides a simple numeric measure of a person's thickness or thinness, allowing health professionals to discuss weight problems objectively with their patients.
The calculator uses the BMI formula:
Where:
Explanation: The formula divides a person's weight in kilograms by the square of their height in meters.
Details: BMI is used to screen for weight categories that may lead to health problems but it is not diagnostic of body fatness or health of an individual. It's a quick screening tool for weight categories: underweight, normal weight, overweight, and obesity.
Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0).
Q1: What are the standard BMI categories?
A: Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obesity (≥30).
Q2: Are there limitations to BMI?
A: BMI doesn't account for muscle mass, bone density, overall body composition, and racial/sex differences.
Q3: Is BMI applicable to everyone?
A: BMI may not be accurate for athletes (high muscle mass), pregnant women, children, and the elderly.
Q4: What does a BMI greater than 60 indicate?
A: This indicates extreme obesity (Class III) and is associated with significant health risks.
Q5: Should BMI be the only measure of health?
A: No, BMI should be used along with other assessments like waist circumference, diet, physical activity, and family history.