Glasses for Your Face Shape
Face-shape labels cannot replace checking frame dimensions. Across this site's ten eyewear pages, nine frame sizes are listed under more than one face shape, and one aviator size (58 / 14 / 135 mm) is listed under three. Repeated dimensions do not prove that the frames are identical, and neither dimensions nor a face-shape label alone guarantee fit.
Glasses for Face Shapes: The Sizes That Repeat
The ten eyewear guides contain 55 frame rows; 49 state the three dimensions. The comparison below groups those complete entries by their listed millimetre values. It compares listings, not measurements of the reader or a fitting test. The nine rows below are the sizes that appear on more than one page. Each number is the figure listed for that frame, in millimetres; the face-shape column is the page it was listed on. Original listing date: September 13, 2026. Rechecked October 12, 2026.
| Lens / bridge / temple (mm) | Frame shape as listed | Face shapes this same size is listed under |
|---|---|---|
| 58 / 14 / 135 | Aviator | Heart, oval, square |
| 50 / 24 / 145 | Round | Heart, oval |
| 62 / 16 / 132 | Cat-eye | Heart, oval |
| 55 / 15 / 141 | Cat-eye | Diamond, oblong |
| 48 / 21 / 145 | Oval | Diamond, square |
| 50 / 21 / 145 | Round (and Panto / Round) | Oval, diamond, square |
| 55 / 19 / 145 | Rectangular | Heart, round |
| 52 / 18 / 145 | Square | Oval, round |
| 54 / 17 / 145 | Round on one page, square on another | Heart, round |
What the repetition establishes
The same size combination can appear in more than one face-shape category. The 54 / 17 / 145 combination is attached to round and square labels in different listings. The 50 / 21 / 145 combination occurs with round and panto / round entries. These are examples of dimensions and outline labels describing different attributes; they do not establish one model's identity across listings.
The same size appears under more than one face shape
The 58 / 14 / 135 aviator is the clearest case: the same lens, bridge, and temple figures are listed for a heart-shaped face, an oval face, and a square face. The 50 / 21 / 145 size is listed for an oval face, a diamond face, and a square face. The repetition is in these listings; it is not a statement that the frames are the same product, and it is not a statement about which face a frame suits.
The size does not follow the frame name either.
The 54 / 17 / 145 size is listed as a round frame on one page and as a square frame on another — the same three numbers under two different shape names. And 50 / 21 / 145 is shared by two different frames, one named round and one named panto / round. Shape names describe the outline; the three numbers are a separate listing, and the two are recorded independently here.
That is why this page puts the numbers first. A face-shape guide lists which outlines are usually suggested for a face; it does not replace checking the three numbers on a frame you already have.
The Three Numbers, and What Each One Records
A frame size is written as three figures, usually on the inner side of the temple arm. Each one records a different measurement of the frame.
Lens width — the horizontal width of one lens, in millimetres. It is not the total width of the assembled frame, which is wider than a single lens.
Bridge width — the gap between the two lenses, in millimetres.
Temple length — the length of the arm from the hinge to the bend behind the ear.
These three numbers are recorded on the frame. How they sit on a particular head is a separate question that the listings here do not answer.
What a Face-Shape Label Cannot Tell You
A face-shape label groups outlines; it does not measure your head, and it cannot promise that a frame will feel right. The rows above are this site's own frame listings read together, not a rule that one size suits one face. To judge a frame you still have to compare its three numbers against your own measurements and check comfort, sliding, and pressure when you look down.
What the dimensions do not establish
Lens width is not the total width of the assembled frame. A nominal temple length does not by itself predict sliding, and a bridge number does not describe the full nose-contact geometry. Do not treat a matching three-number size as proof of comfort or suitability.
Use the outline suggestions as options to try, compare dimensions where available, and check comfort, sliding and pressure during fitting.
Start From a Face Shape
If you already know your face shape, open the matching guide below. Each one carries its own frame table with the numbers behind these rows.
- Glasses for a round faceFrames and sizes listed for a round face.
- Glasses for an oval faceFrames and sizes listed for an oval face.
- Glasses for a square faceFrames and sizes listed for a square face.
- Glasses for a heart-shaped faceFrames and sizes listed for a heart-shaped face.
- Glasses for a diamond face shapeFrames and sizes listed for a diamond face.
- Glasses for an oblong faceFrames and sizes listed for an oblong face.
The eyewear guides
- Glasses For Round Face
- Glasses For Oval Face
- Glasses For Square Face
- Glasses For Heart Shaped Face
- Glasses For Diamond Face Shape
- Glasses For Oblong Face
- Sunglasses For Round Face
- Sunglasses For Oval Face
- Sunglasses For Square Face
- Sunglasses For Heart Shaped Face
More on Face Form Finder
- Face Shape DetectorRead your own four image measurements in the browser before you shop.
- Face Shape ChartHow the common shapes are read from forehead, cheekbone, jaw, and face length.
- Different Face ShapesAn index of each shape and what to look for.
- How to Find Your Face ShapeAn at-home measurement walkthrough.
- Haircuts for Face ShapesThe same kind of direction chart for haircuts instead of frames.