1. What is the Body Mass Index (BMI)?

The Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It is a simple and widely used method to classify underweight, normal weight, overweight, and obesity.

2. How Does the Calculator Work?

The calculator uses the BMI formula:

Where:

• \( peso \) — Weight in kilograms (kg)
• \( altura \) — Height in meters (m)

Explanation: The formula calculates body mass index by dividing weight in kilograms by the square of height in meters.

3. Importance of BMI Calculation

Details: BMI is an important screening tool to identify potential weight problems in adults. It helps healthcare professionals assess health risks associated with different weight categories.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0). For accurate results, measure weight and height without shoes and in light clothing.

5. Frequently Asked Questions (FAQ)

Q1: What are the BMI categories?
A: Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), Obesity (≥30).

Q2: Is BMI accurate for everyone?
A: BMI may not be accurate for athletes (high muscle mass), elderly (loss of muscle mass), pregnant women, and children.

Q3: What are the limitations of BMI?
A: BMI doesn't distinguish between muscle and fat mass, and doesn't account for fat distribution or bone density.

Q4: How often should I check my BMI?
A: For general monitoring, checking every 3-6 months is sufficient unless directed otherwise by a healthcare provider.

Q5: What should I do if my BMI is outside the normal range?
A: Consult with a healthcare professional for personalized advice on diet, exercise, and lifestyle modifications.