A Body Shape Index (ABSI) Calculator
Calculate your A Body Shape Index (ABSI) from waist circumference, BMI, and height. ABSI provides a body-shape reference that has been studied alongside mortality risk.
Free Anthropometrics Calculators
10 toolsBody surface area, frame size, somatotype, and body index calculators. Browse our free anthropometrics tools below — no sign-up required.
Abdominal Volume Index (AVI) Calculator
Calculate your Abdominal Volume Index from waist and hip circumference. AVI provides a geometric abdominal-volume estimate from tape-measure inputs.
Body Frame Size Calculator
Determine your body frame size (small, medium, or large) using the wrist circumference method and elbow breadth method. Adjust ideal weight targets based on frame size.
Body Surface Area (BSA) Calculator
Calculate body surface area using Du Bois, Mosteller, Haycock, Gehan-George, and Boyd formulas. Compare BSA results across common clinical reference methods.
Body Type Classifier — Somatotype Calculator
Classify your body type using the Heath-Carter somatotype method. Calculate your endomorph, mesomorph, and ectomorph scores from body measurements. Includes somatotype chart.
Broca Index Calculator
Calculate your ideal body weight with the Broca Index — one of the oldest and simplest height-to-weight formulas. with sex adjustments.
Conicity Index Calculator
Calculate the Conicity Index to describe abdominal adiposity relative to body size. Uses waist circumference, weight, and height as a geometric reference.
Corpulence Index Calculator
Calculate the Corpulence Index (CI) — a height-cubed body-mass index related to the Ponderal Index. Compare CI with BMI for an alternative body-build assessment.
Ponderal Index Calculator
Calculate your Ponderal Index (PI) — mass divided by height cubed. PI is a proportionality reference used in adult and neonatal assessment.
Rohrer Index Calculator
Calculate the Rohrer Index (mass/height³) for pediatric and adult body proportionality assessment. Includes classification tables for interpretation.