1. What is BMI?

BMI (Body Mass Index) is a simple calculation using a person's height and weight to assess body fatness. It's commonly used to screen for weight categories that may lead to health problems.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

• \( weight \) — Body weight in kilograms
• \( height \) — Height in meters

Explanation: BMI provides a simple numeric measure of a person's thickness or thinness, allowing health professionals to discuss weight problems objectively.

3. Importance of BMI Calculation

Details: BMI is a quick screening tool for weight categories that may lead to health problems. It helps identify potential weight problems in adults.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For a 5'9" (175 cm) female, height would be 1.75 m. All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range?
A: For adults, 18.5-24.9 is considered normal weight. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.

Q2: Is BMI accurate for everyone?
A: BMI may overestimate body fat in athletes and underestimate it in older people who have lost muscle mass.

Q3: How does BMI differ for men and women?
A: The same BMI ranges apply to both genders, though women typically have more body fat than men at the same BMI.

Q4: What's the BMI for a 5'9" female?
A: For a 1.75m (5'9") woman, a weight of 56.7-76.6kg gives a normal BMI of 18.5-24.9.

Q5: Should BMI be the only measure of health?
A: No, BMI should be considered along with other measurements like waist circumference and overall health assessment.