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. 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 tool for weight categories that may lead to health problems. For women over 65, maintaining a healthy BMI is particularly important for reducing risks of osteoporosis, heart disease, and other age-related conditions.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. All values must be valid (weight > 0, height > 0). For older women, BMI interpretation may differ slightly from standard categories.

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI for women over 65?
A: For older women, a BMI between 23-30 is often considered optimal, as slightly higher BMI may be protective against osteoporosis.

Q2: Are there limitations to BMI for older adults?
A: Yes, BMI doesn't distinguish between muscle and fat, and muscle loss with age may make BMI less accurate for seniors.

Q3: Should weight be measured differently for seniors?
A: Morning measurements after using the bathroom are most consistent. Account for any mobility aids that might affect scale readings.

Q4: How often should older women check their BMI?
A: Every 3-6 months is reasonable unless significant weight changes occur.

Q5: What other measurements complement BMI for seniors?
A: Waist circumference and body composition tests provide additional useful information about health risks.