ABSI Calculator
Calculate your A Body Shape Index to assess mortality risk based on body shape and waist circumference
Calculate Your ABSI
Biological sex for reference data comparison
Age between 2-85 years
Height in centimeters
Weight in kilograms
Measure horizontally around your waist at the level of your belly button
ABSI Results
ABSI Health Analysis
Example Calculation
45-Year-Old Male Example
Height: 175 cm
Weight: 80 kg
Waist Circumference: 90 cm
BMI: 80 ÷ (1.75)² = 26.1
ABSI: 0.90 ÷ (26.1^(2/3) × 1.75^(1/2)) = 0.0812
Risk Assessment: Compare with age/sex reference data
40-Year-Old Female Example
Height: 160 cm
Weight: 65 kg
Waist Circumference: 75 cm
BMI: 65 ÷ (1.60)² = 25.4
ABSI: 0.75 ÷ (25.4^(2/3) × 1.60^(1/2)) = 0.0787
Risk Assessment: Compare with age/sex reference data
ABSI Risk Categories
About ABSI
ABSI focuses on waist circumference relative to height and weight
Better predictor of mortality risk than BMI alone
Independent of height, weight, and BMI variations
Research-based assessment tool for health risks
Understanding A Body Shape Index (ABSI)
What is ABSI?
A Body Shape Index (ABSI) is a health assessment tool that evaluates mortality risk based on waist circumference relative to height and weight. Unlike BMI, ABSI accounts for body shape and central adiposity, making it a better predictor of health risks and mortality.
Key Advantages of ABSI
- •Independent of height, weight, and BMI
- •Focuses on central obesity and body shape
- •Better mortality risk predictor than BMI
- •Correlates with cardiovascular disease risk
ABSI Formula
ABSI = WC / (BMI^(2/3) × height^(1/2))
Where WC = waist circumference (m), BMI = kg/m², height = m
Z-Score Interpretation
The ABSI z-score compares your result to population averages for your age and sex. Higher z-scores indicate increased mortality risk.
Medical Disclaimer: ABSI is a research-based screening tool and should not replace professional medical evaluation. Always consult healthcare providers for comprehensive health assessments and personalized medical advice.