1. What is BMI?

Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, normal weight, overweight and obesity in adults. It is calculated by dividing a person's weight in kilograms by the square of their height in meters.

2. How Does the Calculator Work?

The calculator uses the BMI equation:

Where:

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

Explanation: The equation provides a simple numeric measure of a person's thickness or thinness, allowing health professionals to discuss weight problems objectively with their patients.

3. Importance of BMI Calculation

Details: BMI is an inexpensive and easy screening method for weight category - underweight, normal weight, overweight, and obesity. It correlates fairly well with body fat in most people.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For Singaporean women, the healthy BMI range is typically 18.5-22.9 kg/m² according to Health Promotion Board guidelines.

5. Frequently Asked Questions (FAQ)

Q1: What are the BMI categories for Asian women?
A: For Singaporean women: Underweight (<18.5), Normal (18.5-22.9), Overweight (23-27.4), Obese (≥27.5).

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: What's the ideal BMI for Singaporean women?
A: The Health Promotion Board recommends maintaining BMI between 18.5-22.9 kg/m² for optimal health.

Q4: How often should I check my BMI?
A: For most adults, checking every 3-6 months is sufficient unless you're actively trying to lose or gain weight.

Q5: Should pregnant women use BMI?
A: BMI calculations during pregnancy are not meaningful as weight gain is expected and necessary for healthy fetal development.