BRI Calculator — Body Roundness Index
years
cm
Enter height in centimeters
cm
Measure at the level of your navel
kg

Your Results

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Enter your measurements
BMI
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Waist-to-Height
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Health Risk
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Category BRI Range Health Risk
Underweight < 1 Moderate
Normal 1 - 2.5 Low
Overweight 2.5 - 4 Moderate
Obese 4 - 6 High
Extremely Obese > 6 Very High
Learn more about Body Roundness Index

The BRI Calculator helps you estimate your Body Roundness Index (BRI), which is a better method than BMI to understand your body shape and fat level. It uses waist circumference and height to give more accurate health insights.

What is Body Roundness Index?

BRI is a number that shows how round your body is. It gives a better idea of your fat distribution, especially around your waist. Unlike BMI, BRI takes into account where fat is stored in your body. This makes it more useful for spotting health risks like diabetes and heart problems.

Why BRI is Better Than BMI

Most people use BMI, but it only looks at height and weight. It does not show how fat is spread around the body. BRI includes your waist size, which is important because belly fat is more harmful. So, BRI can be a smarter choice for tracking your body health.

BRI Formula:

BRI = 364.2 - 365.5 × √(1 - (WC / 2π)2 / (0.5 × height)2)

Here, WC is your waist in cm, and height is also in cm.

How to Use the BRI Calculator

It’s simple. Enter your waist measurement and your height into the BRI Calculator. You will instantly see your BRI result. The tool will also show what your BRI number means for your health and body fat level.

Understanding Your BRI Score

BRI less than 4: Healthy body shape

BRI 4 to 8: Moderate fat level

BRI 8 to 12: High body fat

BRI over 12: Very high fat, take medical advice

Why It Matters

Knowing your BRI helps you understand if you're at risk for serious health issues. People with a high BRI are more likely to develop problems like high blood pressure and heart disease. This tool can help you take steps early and avoid those risks.

Conclusion

The BRI Calculator is a useful and smart way to check your body shape and fat. It’s free to use and gives better results than BMI. Take control of your health today by using this calculator and making small changes that lead to big improvements. It could save you from costly $ treatments in the future.