01
Keep your head level
Tilting your chin up or down changes the projected forehead-to-chin distance and local jaw angles. Use a relaxed expression and neutral chin position.
FREE · PRIVATE · 4-METRIC 2D BREAKDOWN
Jawline Rating Test
Use this free jawline rating calculator to measure your front-photo jaw angle, jaw-to-cheek width ratio, lower-face contour ratio, and left-right balance. Choose a level, straight-on portrait to see the measurements behind your 0–100 style score.
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Tracing lower-face contour
Analysis in progressTracing lower-face contour
SampleThe guide is measured from this sample photo.
Generated sample · measured with this face tool
01 · METRICS, BANDS & WEIGHTS
What Is a Jawline Rating?
A jawline rating on this page is a custom geometric style index from 0 to 100. It combines four two-dimensional measurements from a front-facing portrait using the tool’s reference bands and weights below.
| Component | Weight | Reference center | Full-score band |
|---|---|---|---|
| Front-photo jaw angle | 30% | 132° | 124°–140° |
| Jaw-to-cheek width ratio | 25% | 0.78:1 | 0.72–0.84 |
| Lower-face contour ratio | 20% | 0.82:1 | 0.74–0.90 |
| Left-right balance | 25% | Zero angle and height differences | Highest at zero difference |
How scoring and scale bands work
The first three components receive 100 points inside their full-score bands. Outside a band, the component score falls as the reading moves farther from the boundary. Balance scores higher as the angle gap and normalized height gap approach zero. Each component score is rounded first; the weighted sum is then rounded to a whole number.
- 85–100: Standout
- 70–84: Defined
- 50–69: Balanced
- Below 50: Understated
These labels describe the weighted total. Different combinations of component scores can produce the same rating; check the breakdown to see which measurements contributed.
A higher score means closer alignment with this calculator’s custom scale. It does not establish that a jawline is sharper, more attractive, or more typical in the general population.
02 · MEASUREMENT PIPELINE
How This Jawline Calculator Works
The browser runs MediaPipe Face Landmarker to locate 478 facial mesh points. The calculation uses only their two-dimensional (x, y) positions, converted to pixels using the image’s width and height. These are model-predicted surface anchors, not clinically located bone landmarks.
Before measuring, the tool averages four anchors around each eye: the inner and outer corners, upper lid, and lower lid. It rotates the coordinates to make the line between the two eye centers horizontal, correcting sideways head roll. Distances between anchors use the 2D straight-line formula √(Δx² + Δy²).
The four illustrations below use the same measurement code as your result. Select a measurement in your result to highlight its guides.
Front-photo jaw angle
Average of the left and right interior angles between neighbouring surface contour segments at the outer-jaw anchors.
At each outer-jaw anchor G, the tool forms vectors to an adjacent upper anchor A and a chin-side anchor B. It averages the two interior angles.
θ = arccos[(GA · GB) / (‖GA‖ × ‖GB‖)] × 180/π
Generated sample · measured illustrationJaw-to-cheek width ratio
Straight-line distance between the two outer-jaw anchors divided by the straight-line distance between the cheek anchors.
Generated sample · measured illustrationLower-face contour ratio
Total length of the 13-point jaw-contour polyline divided by the straight-line distance from the upper-forehead anchor to the chin anchor. The forehead anchor is not the hairline.
Generated sample · measured illustrationLeft-right balance
Uses two inputs: the absolute left-right angle difference, and the roll-corrected jaw-anchor height difference normalized by straight-line cheek width.
The facial symmetry test compares paired landmarks across the rest of the face.
Generated sample · measured illustration03 · FRONTAL VS. CLINICAL ANGLES
Why Front-Photo Angles Cannot Be Compared to the 120–130° Figures Often Quoted Online
Searches for “jawline angle” often return figures between 120° and 130°. Those numbers and this tool’s 132° reference center describe different measurements.
Clinical gonial angle
Clinical studies use lateral cephalograms, panoramic dental X-rays, or direct anthropometry to assess the junction between the posterior border of the mandibular ramus and the lower border of the mandibular body. Reported values vary by age, population, dentition, and measurement method.
Front-photo contour angle
This tool measures the turn between adjacent surface mesh segments in a straight-on photograph. The landmarks, viewing plane, and soft tissues differ from a side-view bone tracing, so there is no fixed mathematical conversion. The reference center is a tool-defined style setting.
What a front photo cannot show
A frontal 2D measurement cannot determine forward chin projection, sagittal jaw depth, or dental bite alignment. To explore visible side-profile chin projection relative to the nose and lips, use the Recessed Chin Test with a true side-view photo.
04 · STYLING & FRAMING
Visual Framing, Grooming, and Styling Ideas
Facial hair, hairstyle, clothing, and light can change how the lower face looks. These are styling ideas to try independently of your measurement score.
Creating a more defined outline
A neatly shaped beard neckline can create a visible boundary beneath the jaw. A common starting point is one to two finger-widths above the Adam’s apple, curving toward the ears; adjust it to your neck and beard growth. Slightly angled lighting can add contrast beneath the chin, while flat front flash can wash it out.
Balancing a wider lower-face impression
Try tapering sideburns and outer-jaw stubble while keeping slightly more length at the chin. Moderate volume at the crown, open collars, or V-necklines can draw the eye vertically.
Balancing a narrower lower-face impression
A short boxed beard with some fullness along the jaw sides can add visual width. Eyewear that stays within your cheekbone width can help keep the upper and lower face visually proportional.
Posing tricks such as extending the head forward can change the appearance of the neck and chin in social photos. For measurement, keep your natural, neutral posture so that comparisons remain consistent.
05 · PHOTO SETUP
How to Take a Consistent Photo for Measurement
Eye-line correction handles sideways roll. It does not undo head pitch, head turn, or perspective from a close camera. Keep these conditions steady when comparing photos.
02
Face the lens straight on
Head turn changes the geometry on both sides of the photo. It can move angle readings and the balance score in either direction.
03
Step back before framing
Keep the camera near eye level and physically move at least an arm’s length away, then crop or use a 2× lens. Zooming without moving back does not remove close-range perspective distortion.
04
Use even light and clear contours
Keep hair away from the cheeks and jaw. Thick beards or harsh side shadows can make anchor placement less reliable.
A failed photo check or incomplete mesh prevents a reading. Pose, camera distance, and occlusion are not fully verified automatically; review the guides against your photo.
06 · SCIENTIFIC CONTEXT
Clinical Context & Anthropometric Literature
These studies explain clinical gonial-angle measurement and craniofacial anthropometry. They provide background; they do not validate this tool’s custom frontal reference values or scoring formula.
| Study and method | Sample and findings | Context for this tool |
|---|---|---|
| Upadhyay et al. (2012) Lateral cephalometry and direct anthropometry | Indian subjects across age and dentition groups. Examined age, sex, tooth loss, and gonial angle; questioned its reliability for age or sex determination. | The quoted 120–130° range is relayed from Izard’s developmental description before second-molar eruption, not established as a universal adult range. |
| Larrazabal-Moron & Sanchis-Gimeno (2018) Panoramic radiographs | 266 Caucasian Mediterranean subjects. In the 21–25 age group: men 120.8° ± 7.0°; women 117.6° ± 5.2°. | Shows variation by age and sex in a specific radiographic sample, rather than a single universal target. |
| Sikaria et al. (2024) Panoramic radiographs | 1,000 radiographs from men and women aged 51–70, analyzed in two age groups. | Illustrates age-stratified analysis of clinical angles; it does not test frontal photo geometry. |
| Farkas et al. (2005) Direct clinical anthropometry | 1,470 young adults across 25 ethnic groups. Documented differences in horizontal and vertical facial measurements. | Clinical caliper landmarks are not interchangeable with this tool’s model-predicted 2D anchors. |
Reference details
- Upadhyay RB, Upadhyay J, Agrawal P, Rao NN. Analysis of gonial angle in relation to age, gender, and dentition status by radiological and anthropometric methods. Journal of Forensic Dental Sciences (2012). PMID 23087579.
- Larrazabal-Moron C, Sanchis-Gimeno JA. Gonial angle growth patterns according to age and gender. Annals of Anatomy (2018). PMID 28954210.
- Sikaria S, et al. Gonial Angle in Forensic Anthropology to Determine Age and Gender: A Population-Specific Analysis. Cureus (2024). PMC11288476.
- Farkas LG, Katic MJ, Forrest CR, et al. International anthropometric study of facial morphology in various ethnic groups/races. Journal of Craniofacial Surgery (2005). PMID 16077306.
07 · COMMON QUESTIONS
FAQ
Quick answers about the score, your photo and what this tool can measure.
How is the 0–100 jawline score calculated from the four weights?
Each component receives an integer score. The final rating is the rounded weighted sum: 30% angle, 25% width, 20% contour proportion, and 25% left-right balance. See the reference table above for the full-score bands.
How do facial hair, shadows, or hair occlusion affect the reading?
The landmark model predicts surface anchor positions from visual patterns in your photo. It does not explicitly trace a hair boundary or locate bone by touch. A thick beard, harsh side shadows, or hair covering the jawline can make landmark placement less reliable and shift the estimated anchors. Use even lighting and keep the lower-face outline visible.
Why does my score change when I retake a photo?
Head pitch, head turn, expression, and camera distance change how your face projects onto a flat image and where the model places its anchors. These shifts can move measurements and component scores in either direction. Keep the camera at eye level, physically step back at least an arm’s length, and use the same relaxed pose for comparisons.
Does the calculator use different reference targets for men and women?
No. Every photo uses the same custom geometric reference bands. Natural facial proportions vary across sexes, ages, and backgrounds, so the score describes alignment with this tool’s fixed scale rather than a gender-specific norm.
Can this front-photo test detect a recessed chin or dental overbite?
No. A front-photo measurement cannot determine forward chin projection or dental bite alignment. To explore visible side-profile chin projection relative to the nose and lips, use the Recessed Chin Test with a true side-view photo.
Is my photo uploaded or stored on a server?
No. Landmark detection and geometric calculations run locally in your browser using JavaScript and WebAssembly. Your photo is never uploaded. Downloadable PNG result cards are rendered on your device using HTML Canvas.
Can facial exercises, chewing, or mewing change my jaw angle?
There is no reliable evidence that facial exercises, chewing routines, or mewing can predictably remodel the underlying bony gonial angle in skeletally mature adults. Changes in body fat, masseter muscle bulk, or head-and-neck posture can alter the visible soft-tissue outline captured in a photo.