Free tool · runs in your browser
Glasses for Your Face Shape
Find the glasses that suit your face from one photo. The tool measures your face shape (oval, round, square, heart, diamond or oblong), names the frame styles that balance it and the ones to go easy on, and estimates the frame width and size to look for, plus your PD.
Drop a photo, paste one, or choose a file
Straight-on, whole face visible, even light. JPG, PNG or WebP.
Runs in your browser. Your photo never leaves your device.
How it is measured
Contrast the face, match the width.
The usual rule is contrast: angular frames on a soft, round face; round frames on a square, angular one; deeper frames on a long face. The tool measures your shape from five ratios (length to width, jaw, lower jaw, forehead and the jaw angle) exactly like the face shape detector, then applies the rule. For size, it measures your face width with your iris as the ruler and suggests a frame a few millimetres wider, with the lens–bridge size printed inside most frames.
- Round
- Rectangular, square, wayfarer, browline.
- Square
- Round, oval, thin metal or rimless, aviator.
- Oval
- Most shapes; keep the frame about as wide as the face.
- Heart
- Bottom-heavy, rimless, aviator, round.
- Diamond
- Oval, cat-eye, rimless, browline.
- Oblong
- Tall, deep lenses and wider frames.
Sources
What this is based on.
The measurement and its reference ranges come from published research. Studies use different methods and populations, so compare your number with the range shown on this page rather than with other tools.
- 1.
Farkas LG, Katic MJ, Forrest CR, et al. (2005). International anthropometric study of facial morphology in various ethnic groups/races. Journal of Craniofacial Surgery. PubMed 16077306
Face width and height proportions measured across ethnic groups. Face-shape names are a styling convention, not a medical classification.
- 2.
Kartynnik Y, Ablavatski A, Grishchenko I, Grundmann M (2019). Real-time facial surface geometry from monocular video on mobile GPUs. arXiv. arXiv:1907.06724
The face-mesh model that places the 468 surface landmarks this tool measures from.
- 3.
Ablavatski A, Vakunov A, Grishchenko I, et al. (2020). Real-time pupil tracking from monocular video for digital puppetry. arXiv. arXiv:2006.11341
The iris model that adds 10 eye landmarks (478 in total), used for pupil-based reference lines.
Our own data: how much each reading moves when the same face is photographed again is published on the methodology page. How we choose sources.
Related tools
FAQ
What glasses suit my face shape?+
Frames that contrast with it: angles for round faces, curves for square ones, depth for long ones. Upload a photo to get your measured shape and the matching frames.
What do the numbers on glasses mean?+
Three numbers inside the temple, such as 52-18-145: lens width, bridge width and temple length in millimetres. Frame front width is roughly two lenses plus the bridge plus a few millimetres.
How wide should my glasses be?+
About as wide as your face at the temples, or slightly wider. The tool estimates your face width and suggests a frame width around it.
Do I need my PD?+
For ordering prescription lenses online, yes. The tool shows it; the pupillary distance tool gives distance, near and monocular values.
Is my photo uploaded?+
No. Everything runs in your browser.
One reading here.
Nineteen in the app.
A controlled scan, every reading against its ideal band, bone vs trainable, a plan, and a 3D model on Face ID iPhones.