1. What is BMI?

BMI (Body Mass Index) 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.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

Where:

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

Explanation: BMI is calculated by dividing weight in kilograms by the square of height in meters.

3. Importance of BMI Calculation

Details: BMI is a simple, inexpensive screening method for weight category—underweight, healthy weight, overweight, and obesity. It helps assess health risks associated with weight.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0). For women, BMI interpretation may need adjustment for body composition differences.

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range for women?
A: Generally 18.5-24.9 kg/m², though some variations exist by age and ethnicity.

Q2: Are there limitations to BMI for women?
A: Yes, BMI doesn't distinguish between muscle and fat, so muscular women may have high BMI without excess fat.

Q3: Should pregnant women use BMI?
A: BMI calculations during pregnancy aren't meaningful. Use pre-pregnancy weight for reference.

Q4: How often should women check their BMI?
A: Periodic checks (every 6-12 months) are sufficient unless actively managing weight.

Q5: Are there better alternatives to BMI?
A: Waist circumference, waist-to-hip ratio, or body fat percentage may provide additional insights.