A Body Shape Index (ABSI) Calculator

Calculate your ABSI from height, weight, and waist circumference.

Inputs

Height

Weight

Waist circumference

Results

Body Mass Index (BMI)

—

kg/m²

A Body Shape Index (ABSI)

—

dimensionless

ABSI combines your waist size with height and weight. Higher values suggest more central fat for a given BMI.

Use this ABSI Calculator to calculate A Body Shape Index from your height, weight, and waist circumference. ABSI combines waist size with BMI and height to provide additional information about body shape.

Calculation Method

First, BMI is calculated:

BMI = weight (kg) ÷ height (m)²

Then ABSI is calculated:

ABSI = waist circumference (m) ÷ [BMI^2/3 × height (m)^1/2]

Example

For a person weighing 80 kg, measuring 1.80 m tall, with a 0.90 m waist:

BMI = 80 ÷ 1.80² ≈ 24.69

ABSI ≈ 0.90 ÷ [24.69^2/3 × 1.80^1/2] ≈ 0.0791

Important Note

ABSI is a body-shape index, not a diagnosis or direct measurement of body fat or health risk. This calculator returns raw ABSI only and does not calculate an age- and sex-specific ABSI z-score or personal mortality risk.

Sources

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