1. What is BMI?

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 screens 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 more objectively with their patients.

3. Importance of BMI Calculation

Details: BMI is a screening tool to identify possible weight problems in adults. While it doesn't measure body fat directly, research has shown that BMI correlates with direct measures of body fat.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For women, BMI interpretation is the same as for the general population, though body composition differences should be considered.

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI for women?
A: For adults 20 years and older, BMI is interpreted using standard weight status categories (underweight, normal, overweight, obese) regardless of gender.

Q2: Are there limitations to BMI for women?
A: BMI may overestimate body fat in athletes and those with muscular builds, and underestimate body fat in older persons who have lost muscle mass.

Q3: Should pregnant women use BMI?
A: BMI calculations during pregnancy aren't useful. Weight gain recommendations should come from a healthcare provider.

Q4: How often should I check my BMI?
A: For most adults, checking BMI annually is sufficient unless you're actively trying to lose or gain weight.

Q5: Does BMI account for body composition differences in women?
A: No, women typically have more body fat than men at the same BMI, but the standard categories still apply.