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. This calculator uses pounds and inches for measurements.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula adjusted for pounds and inches:

Where:

• \( weight \) — Weight in pounds (lb)
• \( height \) — Height in inches (in)
• 703 — Conversion factor (kg/m² to lb/in²)

Explanation: The formula calculates body fat based on height and weight to categorize individuals into underweight, normal weight, overweight, or obese.

3. Importance of BMI Calculation

Details: BMI is a simple screening tool for weight categories that may lead to health problems. It's used to identify possible weight problems in adults.

4. Using the Calculator

Tips: Enter your weight in pounds. Height is preset to 65.7 inches (5 feet 5.7 inches) for this specific calculator. For most accurate results, weigh yourself in the morning before eating.

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range?
A: For adults, 18.5 to 24.9 is considered healthy. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.

Q2: Is BMI accurate for everyone?
A: BMI may overestimate body fat in athletes and underestimate it in older persons who have lost muscle mass.

Q3: Why is height fixed in this calculator?
A: This calculator is specifically designed for women who are 5 feet 5.7 inches tall (65.7 inches).

Q4: What are the limitations of BMI?
A: BMI doesn't directly measure body fat and doesn't account for muscle mass, bone density, or fat distribution.

Q5: Should BMI be the only measure of health?
A: No, BMI should be used along with other measurements like waist circumference and overall health assessments.