How is Canthal Tilt measured and what is considered positive tilt?

Canthal tilt is the angle of the palpebral axis connecting the inner eye corner (medial canthus) to the outer corner (lateral canthus). A positive tilt (+2° to +6°) occurs when the outer corner sits higher than the inner corner, creating an alert, refreshed aesthetic appearance.

How does TheFaceScan detect face shape accurately from a photo?

TheFaceScan uses 478 high-precision facial landmarks to calculate the exact ratios of cheekbone width (bizygomatic breadth), jawline width (bigonial breadth), forehead width, and total face length, mathematically classifying the structure into Oval, Square, Round, Diamond, Heart, or Oblong archetypes.

What is an ideal compact midface ratio (1:1)?

The compact midface ratio compares the distance between the pupils (interpupillary distance) to the vertical distance between the eye line and upper lip. A ratio near 1.0 is considered the modern aesthetic benchmark for compact, harmonious facial proportions.

Is TheFaceScan truly free with zero paywalls?

Yes, TheFaceScan is completely free. Unlike apps that charge $6.99 to $9.99 per week, all calculations—including canthal tilt, face shape, symmetry, and golden ratios—run directly in your browser on TheFaceScan.com without paywalls or credit cards.

Is an oblong face shape the same as an oval face shape?

No. While both feature rounded contours, an oblong face has a significantly higher length-to-width ratio (> 1.5) with fairly uniform widths across forehead, cheekbones, and jaw. Oval faces possess slightly wider cheekbones and taper gently toward a narrower rounded chin. Oblong shapes benefit from wider glasses frames and horizontal beard lines that visually balance vertical length.

Can my face shape change with age or weight loss?

Yes. While underlying cranial bone structure remains stable, subcutaneous buccal fat, masseter muscle development (from chewing/clenching), and age-related collagen loss alter outer soft-tissue contours. Weight loss often reveals sharper gonial jawline angles and prominent zygomatic arches, shifting a round face perception toward square or oval.

How to assess facial symmetry and tell which side is asymmetrical?

Facial symmetry is measured by drawing a vertical sagittal midline through the glabella, nasal tip, and menton, then calculating bilateral coordinate variance for paired landmarks (exocanthion, cheilion, gonion). Up to 3% to 5% hemifacial variation is biologically normal and creates natural character. TheFaceScan generates a color-coded delta heatmap showing exact millimeter deviations per quadrant.

What percentage of people have symmetrical faces and what is a symmetrical face?

Clinical studies show that virtually 0% of the human population has a 100% mathematically symmetrical face. Natural minor hemifacial asymmetry occurs due to lateral sleeping habits, dominant chewing sides, and developmental genetics. Faces with 92% to 98% bilateral balance are universally perceived as harmoniously symmetrical.

How to check your face against the Golden Ratio (Phi 1.618)?

The Da Vinci Golden Ratio face test evaluates whether the vertical distance from hairline to brow, brow to nose base, and nose base to chin each comprise exactly one-third (1:1:1) of total facial height. Furthermore, the ideal ratio of face length to bizygomatic width approaches 1.618. Our tool maps your coordinates against these classical Phi calipers.

How to determine your eye shape from a photo?

To identify your eye shape, examine your crease and the outer corner position: if the crease is hidden by the brow bone when looking forward, you have hooded eyes. If the whites of your eyes show above or below the iris at rest, you have round eyes. If the outer corner sits higher than the inner corner, you have positive canthal tilt (almond/cat-eye). TheFaceScan measures pupil distance and fissure geometry automatically.

How to measure canthal tilt angle scientifically?

Canthal tilt is measured in degrees by drawing a horizontal baseline through the medial canthi (inner eye corners) and calculating the angular slope to the lateral canthi (outer corners). A positive canthal tilt (+2° to +8°) angles upward and is classically associated with hunter or feline aesthetics; neutral tilt is 0°, and negative tilt slopes downward.

What type of nose do I have (Straight, Roman, Button, Greek)?

Nose classification is determined by the dorsal profile line and nasolabial angle. A Greek nose features a straight bridge continuous with the forehead; a Roman (aquiline) nose has a prominent dorsal hump; a Button nose is compact with a slightly upturned tip (> 100° nasolabial angle). Our 3D landmark mesh calculates nasal projection and bridge symmetry in seconds.

How big are my lips and what is my lip shape ratio?

Aesthetic cephalometrics evaluates the vertical height ratio of the upper vermilion border to the lower vermilion border. The classical golden lip ratio is approximately 1:1.6 (the lower lip is roughly 60% fuller than the upper lip). The tool calculates philtrum column height, vermilion volume, and oral commissure width relative to pupil spacing.

How to estimate biological age from facial analysis?

Biological facial age estimation utilizes neural pattern recognition across periocular skin elasticity, nasolabial furrow depth, perioral volume, and forehead landmark tension. Unlike chronological age, biological appearance reflects hydration, sleep quality, UV exposure, and overall metabolic vitality.

Which beard style suits my face shape and jawline contour?

The optimal beard style balances your natural face geometry. For round or oval faces, a sharp boxed beard or angular goatee elongates the chin and introduces structured shadow lines. For oblong faces, fuller sideburns and a trimmed chin reduce vertical exaggeration. For square faces, soft rounded scruff along the jawline softens strong gonial corners.

How to find your facial archetype and model face score?

Facial archetypes categorize facial harmony into classic aesthetic patterns: High Fashion (high bizygomatic-to-jaw taper, positive canthal tilt, defined mandibular ramus), Classic Harmonious (balanced Da Vinci vertical thirds, oval morphology), or Expressive (high orbital openness). TheFaceScan evaluates your facial bone structure without subjective bias.

How does the facial femininity & masculinity test work?

Facial sexual dimorphism is calculated using sexually divergent anthropometric markers: brow ridge (supraorbital) protrusion, jaw-to-cheekbone width ratio, chin height-to-width index, and lip fullness. Higher dimorphism indices correlate with harmonious gender-affirming facial aesthetics.

MediaPipe 478 Landmark Engine • In-browser WebAssembly

Facial anthropometry and symmetry analysis in your browser

Measure cephalometric proportions, Da Vinci thirds, and bilateral balance with sub-millimeter 3D landmark precision. Free, private, and local.

Start face scan Browse all tools

Local memory only

0Photos stored on servers

478Spatial coordinates

Facial landmark scanning mesh and cephalometric planes

┌ CALIB_OK

┐ 30 FPS

└ MEDIAPIPE_WASM

┘ 478_PTS

Bilateral symmetry

98.7% (±0.3mm)

Facial thirds

1 : 1.62 φ

Morphology

Oval

Mesh density

478 points

Sub-millimeter 3D spatial nodes

Inference latency

< 80 ms

On-device GPU or WebAssembly

Data egress

0 bytes

No server calls or remote logging

Cephalometric tools

12 utilities

Symmetry, thirds, angles, and frames

Analysis and styling suite

Every calculator is grounded in standard cephalometric anthropometry. Select any utility below to run a focused analysis or launch the complete scan.

Flagship 3D Scanner

Comprehensive 478-point landmark scan

Runs all cephalometric tests simultaneously from a single photo or live webcam feed. Calculates symmetry scores, vertical thirds, canthal tilt angles, and generates your complete styling summary.

Launch full scan →Instant • No sign-up

Split photographic and wireframe mesh reference

Cephalometric & Harmony Measures

Clinical angles, facial thirds, and mathematical proportion indicators.

Canthal tilt & eye angle

Degrees (°)

Measures palpebral fissure inclination against horizontal baseline.

Open calculator

Golden ratio (Phi 1.618)

Ratio (φ)

Compares vertical facial thirds against classical Da Vinci canons.

Open calculator

Hemifacial symmetry index

Variance (%)

Quantifies bilateral coordinate deviation between left and right landmarks.

Open calculator

Gonial jawline definition

Degrees (°)

Calculates mandibulocervical angle and ramus-to-mandible projection.

Open calculator

Facial morphology detection

Classification

Classifies oval, square, oblong, heart, round, or diamond morphology.

Open calculator

Facial dimorphism assessment

Index score

Evaluates brow ridge prominence, chin width, and soft-tissue markers.

Open calculator

Optical & Styling Utilities

Frame geometry matching, grooming simulations, and cutouts.

Eyewear frame matcher

Frame styles

Recommends acetate and titanium frame geometry tailored to your pupillary distance.

Open calculator

Hairstyle & beard simulator

Interactive

Previews hairstyles and beard contours matched to your jawline proportions.

Open calculator

Facial feature comparison

Cosine distance

Finds verified historical and public figures with matching landmark distances.

Open calculator

Portrait background isolation

Lossless PNG

Extracts studio portraits with preserved sub-pixel hair strand edges.

Open calculator

Dossiers & Longitudinal Tracking

Printable records, social summaries, and multi-scan comparison.

Clinical summary dossier (PDF)

Vector PDF

Generates a 3-page printable report with landmark map and proportion tables.

Open calculator

9:16 mobile proportion card

Social format

Exports a compact card showing primary ratios for consultation or sharing.

Open calculator

Two-scan bilateral delta

Delta overlay

Overlays two captures across weeks or months to track orthodontic or fitness shifts.

Open calculator

Cephalometric foundations

How landmark calculations connect to anatomical landmarks used in orthodontics, maxillofacial surgery, and classical art.

CANON_01 • PROPORTION

Vertical thirds & Phi ratio

Measures trichion-glabella, glabella-subnasale, and subnasale-menton vertical balance against the 1:1.618 golden mean.

CANON_02 • ORBITAL

Palpebral canthal tilt

Measures the angle between the medial (endocanthion) and lateral (exocanthion) eye corners relative to the pupillary axis.

CANON_03 • BILATERAL

Bilateral hemifacial symmetry

Reflects coordinates across the facial midline to calculate displacement across brow, cheek, and jawline contours.

Mandibular gonial angle and jawline contour

CANON_04 • MANDIBULAR

Gonial angle & morphology

Calculates the angle formed by the ramus and body of the mandible to inform precise eyewear and beard styling rules.

Three-step local workflow

Simple sequence from capture to printable report.

Step 1 • Frontal capture

Select photo or camera

Provide a clear frontal portrait with even lighting. The image loads directly into memory via standard HTML5 Canvas.

Step 2 • Landmark extraction

MediaPipe WebAssembly execution

Calculates all 478 coordinates locally in milliseconds. Plane intersections determine asymmetry and proportions.

Step 3: Review report and styling summary

Step 3 • Review & export

Dossier & frame recommendations

Review proportion tables, see tailored eyewear frame geometries, and download a vector PDF dossier.

Mobile application and tablet report view

REPORT OUTPUT

Structured dossiers designed for consultations and personal records

Rather than ambiguous beauty scores, reports deliver concrete angles, millimeter approximations, and frame proportions suitable for eyewear fitting and grooming consultations.

Strict zero-cloud execution

Photos never touch disk or external networks. RAM cleared on session termination.

Tabular cephalometric metrics

Exact numerical readings for canthal tilt, chin projection, and mandibular angle.

Optical frame geometry matching

Bridge, temple, and frame shape advice based on temporal and zygomatic ratios.

Multi-scan longitudinal comparison

Quantifies contour shifts across weeks to evaluate fitness or orthodontic progress.

Launch free scan

Notes from clinical & styling practitioners

How practitioners incorporate local landmark analysis into consultations.

“The sub-millimeter cephalometric accuracy is remarkable for an in-browser utility. I recommend it to clients seeking objective baseline measurements prior to aesthetic consults.”

Dr. Sophia Martinez

Aesthetic Dermatologist

“The Eyewear Matcher and Face Shape detector saved me hours of manual measurements. It accurately flagged geometric acetate frames suited to my jawline balance.”

Marcus Vance

Optical & Eyewear Stylist

“Knowing that my portrait never leaves local device memory provides peace of mind. The Two-Scan Delta allowed me to track symmetry changes over six months of orthodontic care.”

Elena Rostova

Verified User • London

Search • Analysis Guides • Biometric Reference

Facial analysis questions & clinical guides

Direct, evidence-backed answers to the most common questions on face shapes, canthal tilt, symmetry, nose morphology, and styling.

To determine your face shape accurately, measure four key biometric spans: forehead width, cheekbone (bizygomatic) width, jawline width, and total face length (hairline to chin). If length exceeds width with softly rounded jaw curves, you have an oval or oblong shape. If cheekbones form the widest point with an angular jaw, your shape is diamond. TheFaceScan computes these ratios automatically from 478 landmark coordinates.

Detect your face shape

Analyze your facial proportions today

No registration, no credit card, and zero cloud uploads. Get your complete anthropometric baseline in seconds.

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Calibrating Biometric Coordinates...