BMI Formula:
From: | To: |
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. It provides a reliable indicator of body fatness for most people.
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 simple, inexpensive screening method for weight categories that may lead to health problems. It's used to identify possible weight problems in adults.
Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0). For most accurate results, measure height without shoes and weight in light clothing.
Q1: What are the BMI categories?
A: Underweight (BMI < 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obese (≥30).
Q2: Is BMI accurate for everyone?
A: BMI may overestimate body fat in athletes and those with muscular builds, and underestimate it in older persons who have lost muscle mass.
Q3: Why is this calculator specific to males?
A: While the BMI calculation is the same, interpretation may vary slightly by gender. This calculator uses male-specific categories.
Q4: What's a healthy BMI range?
A: For adult males, a BMI between 18.5 and 24.9 is generally considered healthy.
Q5: Should BMI be the only measure of health?
A: No, BMI should be used along with other measurements like waist circumference and body composition for a complete health assessment.