1. What is BMI?

Body Mass Index (BMI) is a simple index of weight-for-height that is commonly used to classify underweight, overweight and obesity in adults. For Indian population, the cutoffs are adjusted to account for higher health risks at lower BMI levels compared to Western populations.

2. How Does the Calculator Work?

The calculator uses the standard BMI formula:

For Indian population, the interpretation differs:

• For men: Normal = 18.5-22.9 kg/m², Overweight = 23-24.9 kg/m², Obese = ≥25 kg/m²
• For women: Normal = 18.5-21.9 kg/m², Overweight = 22-24.9 kg/m², Obese = ≥25 kg/m²
• For girls: Uses age-adjusted percentiles based on Indian growth charts

3. Importance of BMI Calculation

Details: BMI is an important screening tool for weight categories that may lead to health problems. For Indians, even modest increases in BMI can significantly increase risk of diabetes and cardiovascular diseases.

4. Using the Calculator

Tips: Enter weight in kilograms and height in meters. For girls under 20, age is required for accurate percentile calculation. For adults, age is optional.

5. Frequently Asked Questions (FAQ)

Q1: Why different cutoffs for Indians?
A: Indians have higher body fat percentage at lower BMI levels and greater risk of metabolic disorders compared to Caucasians.

Q2: Is BMI accurate for athletes?
A: No, BMI may overestimate body fat in muscular individuals and underestimate it in older people with less muscle mass.

Q3: What are healthy BMI ranges for Indian children?
A: Pediatric BMI is interpreted using age- and sex-specific percentiles. Consult Indian growth charts for accurate assessment.

Q4: How often should BMI be checked?
A: For adults, annually is sufficient unless actively managing weight. For growing children, every 6 months.

Q5: What's better than BMI?
A: Waist-to-hip ratio and body fat percentage measurements provide better assessment of health risks for Indians.