Upload your photo to get an instant jawline score. We measure your jaw-to-cheekbone ratio and chin angle to rate your jawline definition from 0 to 100.
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A defined jawline is one where the lower edge of the jaw is clearly visible, running in a clean line from below the ear to the chin, with a visible angle at the back of the jaw and a chin that sits forward. It's one of the features most strongly associated with attractiveness — especially in men's faces, where a strong jaw reads as masculine, and in looksmaxxing, where the jawline is arguably the most discussed feature of all.
How defined your jawline looks depends on two things: bone structure (how wide and angular your jaw is, and how far forward your chin projects) and soft tissue (how much fat and skin sits over it). This free jawline score tool measures the structural side from a front-facing photo and gives you a score out of 100.
The tool runs Google's MediaPipe Face Mesh in your browser (your photo isn't uploaded) and places landmarks on your jaw angles, cheekbones and chin. It measures two things:
| Component | Weight | What it measures |
|---|---|---|
| Jaw-to-cheekbone ratio | 60% | The width between your jaw angles ÷ the width across your cheekbones |
| Chin angle | 40% | The angle formed at your chin by lines running to each jaw angle |
Jaw-to-cheekbone ratio. This is your face's V-taper. The target is about 0.78 — a jaw roughly three-quarters as wide as the cheekbones. That gives a face both structure (a jaw that's clearly present) and taper (cheekbones that are the widest point). Men's jaws tend to be a little wider relative to their cheekbones and women's a little narrower, so 0.78 is a middle-ground target.
Chin angle. Looking at the face from the front, lines from each jaw angle meet at the chin. A narrower angle means the jaw tapers more distinctly to the chin; a wider angle means a rounder, broader lower face.
| Score | Result |
|---|---|
| 85–100 | Defined jawline |
| 68–84 | Good definition |
| 50–67 | Average definition |
| Below 50 | Soft jawline |
Your results show your jaw-to-cheekbone ratio and chin angle as well as the score.
The gonial angle is the angle at the back corner of your jaw, between the vertical part of the jaw (the ramus) and the horizontal part (the jaw body). It's measured from the side profile, usually on an X-ray, and is commonly reported as roughly 120–130 degrees in adults. A lower gonial angle gives a sharper, more angular jaw; a higher one gives a steeper, softer jawline.
This tool works from a front-facing photo, so it doesn't measure your gonial angle. The jaw-to-cheekbone ratio and chin angle it does measure describe how defined your jaw looks head-on — which is what most people see in photos and in person.
The structure is mostly genetic, but how defined your jawline looks can change a lot:
What has weak or no evidence: mewing, jawline exercisers and chewing very hard gum. Building up the chewing muscles can widen the lower face slightly, but overdoing it risks jaw pain and TMJ problems, and there's no evidence it reshapes adult bone.
Medical options include jaw and chin fillers, chin and jaw implants, and, for slimming a wide lower face, botulinum toxin injections into the chewing muscles. These should only be done by a board-certified specialist.
Upload a straight-on photo to this tool. It measures your jaw-to-cheekbone ratio and chin angle and gives you a score out of 100. A score of 68 or above means good definition, and 85 or above is a defined jawline.
This tool targets about 0.78 — a jaw roughly three-quarters as wide as the cheekbones. Men's jaws tend to be slightly wider than this and women's slightly narrower.
The gonial angle is the angle at the back corner of the jaw, measured from the side. It's commonly reported as roughly 120–130 degrees in adults. A lower angle gives a sharper, more angular jaw.
Lowering your body fat is the most effective change, followed by better posture and a well-shaped beard. Exercises and mewing don't have good evidence for changing adult jaw structure.
There's no good scientific evidence that mewing changes the shape of an adult's jaw. Any change people notice is more likely to come from posture or weight loss.
Chewing can build the chewing muscles slightly, but there's little evidence it improves jaw definition, and chewing very hard gum for long periods can cause jaw pain and TMJ problems.
Yes. It's free, needs no signup, and your photo is analysed in your browser.