Complete Guide to BMI Calculation
What is BMI?
BMI (Body Mass Index) is an indicator that estimates body fat percentage using height and weight. Calculated by dividing weight (kg) by height (m) squared, it's widely used for obesity diagnosis. This tool applies the Asian obesity diagnosis standard (WPRO, 2000).
How to Use
Step 1: Enter height (cm) or adjust with slider. Step 2: Enter weight (kg) or adjust with slider. Step 3: Click Calculate to get your BMI. Step 4: View obesity category, ideal weight range, and weight loss/gain needed to reach normal weight.
Obesity Categories (Asian Standard)
• Underweight: BMI below 18.5 - Possible malnutrition risk • Normal: BMI 18.5-23 - Healthy weight range • Overweight: BMI 23-25 - Management needed • Obese: BMI 25-30 - Increased health risk • Severely Obese: BMI 30+ - Active management needed
Frequently Asked Questions (FAQ)
- Q. Is BMI calculation accurate?
- A. BMI is a convenient indicator for estimating body fat percentage, but may be inaccurate for athletes with high muscle mass or the elderly. For accurate body fat measurement, professional consultation is recommended.
- Q. Is the Asian standard different?
- A. Yes, Asians have higher body fat percentage and higher obesity-related disease risk at the same BMI compared to Westerners. Therefore, the Asian standard (WPRO 2000) applies a stricter normal range of 18.5-23 compared to Westerners (18.5-25).