Free Online Calculators

BMI Calculator

Calculate your Body Mass Index (BMI) to find out your weight category — underweight, normal, overweight, or obese.

Enter Your Measurements
BMI Categories (WHO Standard)
BMI Range Category Health Risk
Below 18.5⬇ UnderweightMalnutrition risk
18.5 – 24.9✅ Normal weightLow
25.0 – 29.9⚠ OverweightEnhanced
30.0 – 34.9🔴 Obese Class IMedium
35.0 – 39.9🔴 Obese Class IIHigh
40.0 and above⛔ Obese Class IIIVery High

What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight. It applies to adult men and women and is widely used by doctors as a quick screening tool. BMI = weight(kg) ÷ height²(m).

Limitations of BMI

BMI does not directly measure body fat. Athletes with high muscle mass may have a high BMI despite being healthy. It also does not account for age, ethnicity, or fat distribution. Always consult a doctor for a complete health assessment.

Healthy BMI for Indians

Studies suggest that South Asians (including Indians) tend to have higher body fat at lower BMI values. Some health experts recommend a healthy BMI range of 18.5 – 22.9 for the Indian population.

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