BRI Calculator
A smarter way to measure your health. The Body Roundness Index (BRI) provides a more realistic picture of your body composition than BMI.
Pro Tip: Measure at the narrowest part of your torso, usually just above the belly button.
Providing weight allows us to compare your BRI with your BMI.
Enter your details to calculate your BRI score.
Why Use the Body Roundness Index?
For decades, BMI has been the standard for health. However, BMI fails to distinguish between muscle and fat. The Body Roundness Index (BRI) was developed by researchers to solve this. By looking at your body’s geometric shape, it accurately predicts visceral fat—the fat that surrounds your organs and drives health risks.
🎯 More Accurate
BRI is a better predictor of metabolic syndrome, heart disease, and diabetes than BMI because it focuses on abdominal roundness.
⚖️ Muscle vs. Fat
Athletes often have high BMIs due to muscle mass. BRI recognizes their lean shape, providing a more fair health assessment.
📉 Health Risks
A BRI score outside the healthy range (3.4 – 5.4) is scientifically linked to higher mortality risks. Knowing your score helps you take action.
| BRI Range | Category | Health Risk Level |
|---|---|---|
| Below 3.4 | Low BRI | Increased risk (often associated with low muscle mass) |
| 3.4 – 5.4 | Healthy | Optimal health range (Lowest risk) |
| 5.5 – 6.9 | Moderate | Increased risk of metabolic issues |
| Above 6.9 | High BRI | High risk of heart disease and diabetes |