Cephalic Index Calculator
Calculate the cephalic index of a skull to evaluate head shape and classify it as dolichocephalic, mesocephalic, or brachycephalic.
Input Parameters
Enter details for calculation.
Cephalic Index (CI)
Classification
Expert Tip
Cephalic index is widely used in medicine, anthropology, and pediatrics to track cranial development and detect conditions like craniosynostosis.
Calculation Methodology & Details
Formula
Dolichocephalic is defined as CI ≤ 75.9 (long, narrow head shape). Mesocephalic falls between 76.0 and 80.9 (average head shape). Brachycephalic is defined as CI ≥ 81.0 (broad, short head shape).
Important Disclaimer
The calculations provided are for educational and general planning guidelines only. They do not replace professional forestry or anatomical analysis or certified advice.
How to Determine Head Shapes
Steps to classify cranial measurements:
Measure Head Width
Obtain maximum width of head above ears (Biparietal diameter, BPD).
Measure Head Length
Measure length from glabella (between eyebrows) to furthest back point (OFD).
Find Index & Class
Divide width by length and multiply by 100 to determine shape classification.