Body Mass Index (BMI) is a simple yet powerful tool to determine whether your weight is healthy for your height. BMI Calculator is a tool that helps to determine your health status and easily determine whether you are overweight, underweight, or healthy as per your BMI.
BMI Calculator
International BMI Comparison
| Country | Average BMI | Healthy Range | Obesity Rate | Trend |
|---|
*Data based on WHO reports and national health surveys (2022-2023)
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What is BMI?
Body mass index (BMI) measures body fat based on height and weight for adult men and women. It is widely used as a general indicator of whether a person has a healthy body weight for their height. Specifically, the value obtained from the calculation of BMI is used to categorize whether a person is underweight, normal weight, overweight, or obese, depending on which range the value falls between.
BMI Table
A BMI table is a chart that provides a quick reference to categorize an individual’s weight status based on their BMI score, which is calculated using their weight and height. BMI is a numerical value that helps determine whether a person’s weight is within a healthy range for their height.
- Underweight: BMI < 18.5
- Normal weight: BMI 18.5–24.9
- Pre-obesity: BMI 25–29.9
- Obesity class I: 30.0–34.9
- Obesity class II: 35.0–39.9
- Obesity class III: Above 40
A high BMI increases the risk of heart disease, diabetes, and other health issues, while a low BMI may indicate malnutrition or other concerns.
How to Calculate BMI
You can calculate your BMI manually using this formula:
BMI = Weight (kg) / (Height (m))²
Example: If you weigh 70 kg and are 1.75 m tall:
BMI = 70 / (1.75 × 1.75) = 22.9 (Normal weight)
For convenience, use our BMI calculator to get instant results!
BMI Trends: How India Compares Globally
India’s average BMI is 22.1, lower than Western countries but rising due to lifestyle changes.
| Country | Avg. BMI | Healthy Range | Obesity Rate |
|---|---|---|---|
| India | 22.1 | 18.5–23.0* | 12.5% |
| USA | 28.8 | 18.5–24.9 | 42.4% |
| UK | 27.3 | 18.5–24.9 | 28.0% |
| Japan | 22.6 | 18.5–23.0 | 4.3% |
WHO recommends a lower BMI threshold for Indians due to higher body fat at lower weights.
5 Tips to Maintain a Healthy BMI
WHO recommends eating lots of fruits and vegetables, reducing fat, sugar, and salt intake, and exercising. Based on height and weight, people can check their body mass index (BMI) to see if they are overweight. Check WHO Guidelines
- Eat a Balanced Diet – Whole grains, lean proteins, and vegetables.
- Exercise Regularly – Aim for 150+ minutes of moderate activity per week.
- Monitor Portion Sizes – Avoid overeating processed foods.
- Stay Hydrated – Drink enough water to support metabolism.
- Get Enough Sleep – Poor sleep can lead to weight gain.
Frequently Asked Questions (FAQ)
Ques-1.- What is the BMI formula?
The BMI is calculated using the following formula:
BMI = (weight in kilograms) / (height in meters)2
Ques-2. Is BMI different for men and women?
Body Mass Index formula itself is the same for both men and women. It’s a simple mathematical calculation based on a person’s weight and height. However, when interpreting BMI values, it is important to note that men and women may have different average body compositions. Men and women typically differ regarding muscle mass, fat distribution, and other physiological factors. As a result, the same BMI value may have slightly different implications for men and women.
Ques-3. Can BMI tell how much weight to lose?
BMI provides a general idea of whether the individual is underweight, of normal weight, or overweight. It does not give any specific guidance about how much weight should be reduced. It is best to consult with a healthcare professional for advice.