BRI Calculator — Body Roundness Index
Assess visceral fat distribution and health risks more accurately than BMI
Calculate Your Body Roundness Index
How to Take Measurements
Height: Stand straight against a wall and measure from floor to top of head
Waist Circumference: Measure at the midpoint between your last rib and top of hip bone (iliac crest)
💡 Tip: For waist measurement, find the narrowest part of your torso, usually just above the belly button
e.g., 175 cm
Measure at narrowest point of torso
BRI Analysis Results
BRI Result Interpretation
BRI < 3.41
Low BRI - Moderate risk increase, especially with other risk factors present.
BRI 3.41 - 4.44
Optimal Low Range - No statistically significant increase in health risks.
BRI 4.45 - 5.45
Optimal Range - Low risk for health problems related to visceral obesity.
BRI 5.46 - 6.91
Elevated BRI - Moderate risk increase, especially with other risk factors.
BRI > 6.91
High BRI - Higher risk of health problems related to visceral obesity. Consider physician consultation.
Measurement Tips
BRI vs BMI
Body Roundness Index (BRI)
- • Considers body shape and fat distribution
- • Focuses on waist circumference
- • Better predictor of cardiovascular risk
- • Assesses visceral fat accumulation
Body Mass Index (BMI)
- • Uses only height and weight
- • Doesn't account for body composition
- • May misclassify muscular individuals
- • Standard but limited assessment
Understanding Body Roundness Index (BRI)
What is BRI?
The Body Roundness Index (BRI) is a health assessment tool that measures how closely your body shape resembles a ball. It's calculated using height and waist circumference to assess visceral fat distribution, which is more strongly linked to health risks than overall body weight.
BRI Formula
Where WC = waist circumference and h = height (both in meters)
Why BRI Matters
- •Better predictor of cardiovascular disease risk than BMI
- •Specifically assesses harmful visceral fat accumulation
- •Accounts for body shape differences between individuals
- •Helps identify metabolic syndrome risk
Research shows: A U-shaped relationship exists between BRI and mortality risk, with both very low (<3.41) and very high (>6.91) values associated with increased health risks.
Visceral Fat and Health Risks
Cardiovascular
Increased risk of heart disease, high blood pressure, and stroke
Metabolic
Higher risk of diabetes, insulin resistance, and metabolic syndrome
Other Risks
Increased inflammation, certain cancers, and sleep apnea
Medical Disclaimer: This calculator is for educational purposes only and should not replace professional medical advice. Always consult with a healthcare provider for personalized health assessments and medical decisions. BRI is one of many factors that contribute to overall health status.