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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. BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.
The calculator uses the standard BMI formula:
Where:
Explanation: BMI is calculated by dividing weight in kilograms by height in meters squared. This provides a standardized measurement that can be used to assess weight status across different populations.
Details: BMI is widely used as a screening tool to identify possible weight problems in adults. It provides a quick assessment of whether a person has a healthy body weight for their height. While BMI doesn't measure body fat directly, research has shown that BMI correlates with direct measures of body fat.
Tips: Enter your weight in kilograms and height in meters. For accurate results, measure weight without heavy clothing and height without shoes. All values must be valid (weight > 0, height > 0).
Q1: What Do The BMI Categories Mean?
A: Underweight (BMI < 18.5), Normal weight (BMI 18.5-24.9), Overweight (BMI 25-29.9), Obese (BMI ≥ 30).
Q2: Is BMI Accurate For Everyone?
A: BMI may not be accurate for athletes (muscle weighs more than fat), pregnant women, children, and the elderly. It's a screening tool, not a diagnostic measurement.
Q3: How Often Should I Check My BMI?
A: For most adults, checking BMI every 3-6 months is sufficient unless you're actively trying to lose or gain weight.
Q4: What's A Healthy BMI Range?
A: For adults, a BMI between 18.5 and 24.9 is generally considered healthy and associated with the lowest health risks.
Q5: Can BMI Be Used For Children?
A: BMI calculations for children and teens are interpreted differently, using age and sex-specific percentile charts rather than fixed categories.