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 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
• \( height \) — Height in meters

Explanation: The formula divides your weight by the square of your height to determine if you're underweight, normal weight, overweight, or obese.

3. Importance of BMI Calculation

Details: BMI is used to screen for weight categories that may lead to health problems. It's a quick and easy method to assess whether someone might be at risk for weight-related health issues.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Is BMI accurate for everyone?
A: BMI may not be accurate for athletes (who have more muscle mass), pregnant women, or the elderly (who may have lost muscle mass).

Q2: What are the BMI categories?
A: Underweight (BMI < 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obese (≥30).

Q3: How often should I check my BMI?
A: For most adults, checking BMI once a year is sufficient unless you're actively trying to lose or gain weight.

Q4: Does BMI differ for men and women?
A: The same BMI ranges apply to both men and women, though body composition differs between genders.

Q5: What's a healthy BMI for Singaporeans?
A: The same international standards apply, though some studies suggest lower BMI cut-offs may be more appropriate for Asian populations.