1. What is BMI?

Body Mass Index (BMI) is a value derived from the mass and height of a person. The BMI is defined as the body mass divided by the square of the body height, and is expressed in units of kg/m².

2. How Does the Smart BMI Calculator Work?

The calculator uses the standard BMI formula with age adjustment for women:

Where:

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

Special Adjustment: For women aged 65+, the calculator applies a 5% adjustment to account for natural body composition changes with age.

3. Importance of BMI Calculation

Details: 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.

4. Using the Calculator

Tips: Enter weight in kilograms, height in meters, and age in years. For accurate results, measure height without shoes and weight with minimal clothing.

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range?
A: For adults, 18.5-24.9 is considered normal weight. For women over 65, 23-27 may be more appropriate.

Q2: Why does this calculator adjust for age?
A: Older women naturally have more body fat at the same BMI as younger women, so the adjustment provides more accurate health assessment.

Q3: What are BMI limitations?
A: BMI doesn't distinguish between muscle and fat, so muscular individuals may be classified as overweight.

Q4: Is BMI different for men and women?
A: The formula is the same, but healthy ranges may differ slightly due to natural body composition differences.

Q5: Should pregnant women use BMI?
A: Standard BMI calculations are not appropriate during pregnancy as weight gain is expected and necessary.