Skull Theory Calculator
Predict gender using 12-week ultrasound cranial shape characteristics.
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Calculation Results
Skull Prediction: GIRL 💕
67% Girl
Metrics Analysis
Male Facial Traits Count1 of 3
Female Facial Traits Count2 of 3
Analysis FrameworkStandard Cranial Dimorphism
How This Calculator Works
Scores facial and cranial features against classic anatomical dimorphisms.
Skull Theory Calculator — Cranial Shape Predictor
Analyze your 12-week ultrasound profile to explore fetal skull gender markers.
Anatomical Dimorphisms
Adult skulls display distinct gender indicators, but these are rarely fully formed in early first-trimester fetuses.
Fun Speculation
While entertaining, do not use skull shapes to paint nurseries or buy gear.
Clinical Standard Reference Guideline:
Forensic Anthropology Cranial Dimorphism Charts.
Frequently Asked Questions (FAQ)
Q:What is Skull Theory?
A popular method that attempts to guess fetal sex by analyzing skull shape and jaw structure from 12-week ultrasound profile photos.