LOOKSMETER · GUIDE
Best glasses for your face shape
Frame charts get you halfway: counter your dominant lines, match the frame to your face width. The other half is the eyes and brows the frame sits around, and the fit measurements that decide whether any shape looks right on you at all.
The one rule behind every frame chart
Glasses sit across the middle third of the face, so their shape either repeats your dominant lines or counters them. Every optician chart reduces to that: give a soft face some structure, give an angular face some curve, add width where the face is narrow and height where it is long. Here is how that plays out for each of the seven shapes:
Oval
Balanced length and width with a gently tapering jaw, so most shapes work. Pick frames as wide as the widest part of your face and resist going oversized - very large frames swamp the balanced proportions that make the oval easy to dress. Walnut-shaped and soft rectangles are the safest bets.
Round
Full cheeks, soft jaw, length close to width. Choose angular frames - rectangles, squares, wayfarers, browlines - slightly wider than the cheekbones to add length and definition. Avoid small round and oval frames that echo the curves, and avoid low, heavy bottoms that drag the face down.
Square
Broad forehead, wide angular jaw, straight sides. Choose round, oval or softly rounded rectangular frames to break up the angles - aviators and thin metal rims work well. Avoid boxy, flat-topped frames and heavy dark acetate that mirrors the jaw.
Oblong
Noticeably longer than wide, often with a long nose and high forehead. Choose deeper lenses - tall rectangles, oversized squares or rounds - with a low bridge and detail or colour on the temples to add width and shorten the face. Avoid narrow, shallow frames, which make the face look longer still.
Heart
Wide forehead and temples tapering to a narrow chin. Choose frames that are lighter on top and add visual weight lower down: rimless, thin metal, round or oval frames, and aviators. Avoid heavy top bars and strongly flared cat-eyes, which widen the already-widest part of the face.
Diamond
Cheekbones are the widest point, with a narrow forehead and chin. Choose frames that add width at the brow line - browline, soft cat-eye, oval and rimless styles - and keep the frame no wider than the cheekbones. Avoid narrow, boxy frames that make the cheekbones jut out further.
Triangle
Jaw wider than the forehead. Choose top-heavy frames - browlines, cat-eyes, aviators with a strong upper rim, bold top bars with lighter bottoms - to balance the strong lower face. Avoid bottom-heavy or very narrow frames that leave the jaw as the only strong line.
Glasses for round faces → · Glasses for square faces → · Glasses for oval faces → · Glasses for heart faces → · Glasses for diamond faces → · Glasses for oblong faces → · Glasses for triangle faces →
Why eye shape and brow line change the pick
Two people with the same face shape can suit completely different frames, because the frame also has to agree with the eyes and brows it sits around. Three reads matter. Eye spacing sets the bridge: close-set eyes want a thin, light or clear bridge and detail pushed to the outer corners - wide-set eyes suit a darker, lower-set bridge that visually draws them in. Lid exposure sets the rim weight: hooded and deep-set eyes disappear behind thick dark rims and come forward in thin metal or light acetate - prominent, open eyes can carry heavier frames.
The brow line sets the top of the frame. The upper rim should follow the shape of your brow and sit just below it, so the brow is still visible above the frame. A frame that cuts through the brow reads as two sets of eyebrows - one that sits far below leaves a blank band. A low, straight brow suits a straighter top rim and thinner frame - a high, arched brow suits a browline or cat-eye that mirrors the arch. Upturned eyes can take a frame whose outer corner lifts - downturned eyes are lifted by a frame that angles up at the temple and avoids any downward droop at the outer edge.
Read your eye shape, set and spacing free → · What is my eye shape? →
Fit beats shape: the three measurements
A frame in the right shape that fits badly looks worse than a plain frame that fits. Check three things. Frame width: the outer edges should sit at or just beyond the widest part of your face, and your eyes should be centred horizontally in each lens - eyes pushed to the inner edge means the frame is too wide. Bridge: the frame should rest on the nose without sliding or pinching; if you have a low or flat nose bridge, look for adjustable nose pads or a low-bridge fit rather than forcing a keyhole bridge that leaves the frame sitting on your cheeks. Lens depth: the bottom rim should clear your cheeks when you smile, and the top rim should sit just under the brow.
Only after fit is right does shape do its work. Try frames in daylight, from a photo taken at arm's length rather than the shop mirror at close range - a phone held close exaggerates the centre of the face and makes every frame look narrower than it is.
Measure your Pupillary Distance (PD) & frame width in mm free →
Mistakes that undo a good frame
Going too wide is the most common. A frame that extends well past the temples makes the head look small and the frame look borrowed, no matter how fashionable the shape. Second is colour: heavy black acetate on light, low-contrast colouring draws every eye to the frame instead of the face, where a tortoiseshell, crystal or warm brown would sit in. Third is repeating your strongest line - a round frame on a round face, a square frame on a square jaw - because it looked right on the model with the opposite face.
If you are between two shapes, as most people are, pick for the dominant trait: a round-oval face can take gentle angles, a square-oblong face wants depth and curve. A measured read of your actual proportions, rather than a quiz label, tells you which trait is dominant.
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Frequently asked
What glasses suit a round face?
Frames with corners. Rectangular, square, wayfarer and browline frames add the straight lines and angles a round face lacks, and a frame that sits slightly wider than the cheekbones lengthens the face visually. Keep the lenses a little shallower than they are wide, and avoid small round or oval frames, which repeat the face's curves and make it read rounder.
What glasses suit a square face?
Frames with curves. Round, oval and softly rounded rectangles soften a strong jaw and broad forehead - aviators and P3-style frames work for the same reason. Thinner rims and lighter colours keep the frame from competing with the bone structure. Avoid boxy, flat-topped frames with hard corners, which stack angles on top of angles.
How do I know which face shape I have for choosing glasses?
Compare four things from a front-facing, eye-level photo: forehead width against cheekbone width, cheekbone width against jaw width, face length against cheekbone width, and whether the jaw is rounded, squared or pointed. Round and square faces are about as long as they are wide - oblong faces are clearly longer - heart and diamond faces narrow to the chin. A measured read from a landmark tool is far more reliable than eyeballing a mirror.
Should glasses be wider than your face?
About as wide as the face at the temples - the outer edge of the frame should land at, or a few millimetres beyond, the widest part of your face. Narrower than that and the face looks wider - much wider and the frame looks borrowed. The exception is a deliberately oversized style on an oblong or oval face, which can carry extra width.
Do eye shape and eyebrows matter when choosing glasses?
Yes, and most charts ignore both. Eye spacing decides the bridge: close-set eyes want a thin, light or clear bridge that does not pull the eyes together, wide-set eyes suit a darker, lower bridge. The top line of the frame should follow the line of your brows and sit just below them - a frame that cuts through the brow or sits far below it gives you a second set of eyebrows. Hooded or deep-set eyes do better with thinner rims and lighter colours so the eye is not shadowed further.
Eyewear guides by face shape & free tools
Glasses for Round Faces
Rectangular, square, wayfarer, browline & cat-eye frames that add crisp angles.
Glasses for Square Faces
Round, P3 keyhole, oval, and teardrop aviators that soften angular jaw corners.
Glasses for Oval Faces
Wayfarer, walnut, soft rectangular, and geometric frames sized to your cheekbones.
Glasses for Heart Faces
Round, aviator, and light-rimmed frames that balance a broader forehead.
Glasses for Diamond Faces
Browline, cat-eye, and top-accented frames that broaden a narrow brow line.
Glasses for Oblong Faces
Deep-lens wayfarers, oversized squares, and aviators that shorten vertical length.
Glasses for Triangle Faces
Clubmasters, upswept cat-eyes, and D-frames that widen the upper third.
Glasses & Sunglasses Try-On
Try 8 eyewear silhouettes on your photo with automatic PD frame sizing.
Pupillary Distance (PD) Tool
Measures your Far PD, Reading PD, Dual Monocular PD (OD/OS) in mm and frame width class.
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This page is general information about facial aesthetics terminology, not medical or cosmetic advice. Scores from our tools are AI-generated estimates for entertainment and self-reflection.