BMI Formula:
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Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared. For females, BMI provides a general indicator of body fatness.
The calculator uses the standard BMI formula:
Where:
Explanation: The formula divides weight by the square of height to provide a standardized measure of body weight relative to height.
Details: BMI is a quick screening tool to identify possible weight problems in adults. For females, it helps assess health risks associated with being underweight or overweight.
Tips: Enter weight in kilograms and height in meters. For accurate results, measure height without shoes and weight with minimal clothing.
Q1: Is BMI different for females and males?
A: The calculation is the same, but interpretation may differ slightly as females naturally have higher body fat percentages.
Q2: What are normal BMI values for females?
A: 18.5-24.9 is considered normal. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.
Q3: When is BMI not accurate?
A: BMI may overestimate body fat in athletes with muscle mass and underestimate it in older adults with muscle loss.
Q4: Should pregnant women use BMI?
A: BMI calculations during pregnancy are not meaningful. Use pre-pregnancy weight for reference.
Q5: Are there better measures than BMI?
A: Waist circumference and body fat percentage provide additional information about health risks.