Cephalometric Analysis Calculator

Compute key angular and linear cephalometric measurements (SNA, SNB, ANB, FMA) and compare to normative values.

SNA Angle (degrees)

deg

SNB Angle (degrees)

deg

FMA / FH-MP Angle (degrees)

deg

U1 to NA (degrees)

deg

L1 to NB (degrees)

deg

U1 to NA (mm)

L1 to NB (mm)

Wits Appraisal (mm)

Sex

Tab to move between fields

ANB Angle (degrees)

Skeletal Classification1

SNA Deviation (degrees)0

SNB Deviation (degrees)0

ANB Deviation (degrees)0

FMA Deviation (degrees)0

Significant Deviations (>2 SD)0

Skeletal ClassClass I (Normal)

Growth PatternNormal (Mesofacial)

U1ProtrusionNo

L1ProtrusionNo

How to Use This Calculator

Enter key cephalometric landmark coordinates from a traced lateral cephalogram.
Input ANB angle, SNA, SNB, and other skeletal measurements as prompted.
Read derived cephalometric values and compare against normative standards.
Review skeletal and dental discrepancy analysis to guide treatment planning decisions.
Use results in the diagnostic workup alongside models and photographs.

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