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 useful measure of overweight and obesity. It is calculated from your height and weight and is an inexpensive and easy-to-perform method of screening for weight categories that may lead to health problems.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For most adults, an ideal BMI is in the 18.5 to 24.9 range. All values must be valid (weight > 0, height > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is a healthy BMI range?
A: For most adults, an ideal BMI is in the 18.5 to 24.9 range. Below 18.5 is underweight, 25-29.9 is overweight, and 30 or above is obese.

Q2: Does BMI apply to everyone?
A: BMI may not be accurate for athletes (who may have high muscle mass), pregnant women, the elderly, or children. Other measurements may be needed.

Q3: 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.

Q4: What are the limitations of BMI?
A: BMI doesn't distinguish between muscle and fat, so athletes may have a high BMI without health risks. It also doesn't account for fat distribution.

Q5: Should BMI be the only measure of health?
A: No, BMI should be considered along with other measurements like waist circumference, diet, physical activity, and family history.