ABSI Calculator

June 8, 2026

This ABSI Calculator helps estimate A Body Shape Index (ABSI), a metric that assesses body shape and abdominal fat distribution beyond BMI alone.

ABSI Calculator

ABSI Formula

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

Parameters Explained

Waist circumference: measured at the waist (cm or m)
BMI: Body Mass Index calculated from height and weight
Height: measured without shoes

How It Works

The calculator combines waist size, height, and BMI to evaluate body shape, helping indicate health risks related to central fat accumulation.

Ethan Caldwell

Ethan builds the interactive health calculators on Height Growth Blog. Based in Denver, Colorado, he combines a software engineering background with a focus on evidence-based health tech, turning dense clinical guidelines — from CDC growth charts to NIH/IOM dietary references — into tools parents and teens can use in under a minute. Every calculator on the site, from BMI Percentile to Body Fat and Calcium Intake, is built directly from primary sources (NIH, AAP, CDC, Mayo Clinic) and cross-checked against peer-reviewed studies before launch.

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