Your glasses sit in the middle of your face, so the frame shape has a big effect on how they look on you. Knowing your face shape is a quick way to narrow down hundreds of frames to the styles most likely to flatter you.
Face-shape advice works best as a set of guidelines, not strict rules. In this guide, we'll show you how to find your face shape in a couple of minutes, which frame shapes tend to suit oval, round, square, heart, diamond and oblong faces (and why), and why getting the size right matters just as much as choosing the shape.
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How to Determine Your Face Shape
You only need a mirror (or your phone's front camera) and a minute or two. Use this quick method:
- Pull your hair back so your hairline, temples and jaw are visible.
- Face the mirror straight on, at eye level, with a relaxed expression.
- Trace or picture the outline. You can trace the outline of your face on the mirror with a washable marker, or take a straight-on photo and look at the outline.
- Find the widest part. Compare the width of your forehead, cheekbones and jaw. Which is widest, and which is narrowest?
- Compare length and width. Is your face noticeably longer than it is wide, or are the two about the same?
- Look at your jaw and chin. Is the jawline rounded, angular, or tapered to a narrower chin?
Then match what you see to the closest description:
- Oval: a little longer than wide, cheekbones slightly widest, softly rounded jaw.
- Round: similar length and width, full cheeks, soft curves and a rounded jaw.
- Square: similar length and width, a broad forehead and a strong, angular jaw.
- Heart: wider forehead and cheekbones, tapering to a narrower chin.
- Diamond: cheekbones clearly widest, with a narrower forehead and jaw.
- Oblong or rectangle: noticeably longer than wide, with forehead, cheekbones and jaw of similar width.
Many people are a mix of two shapes, such as round-oval or square-oblong. That's normal. Read the advice for both and look for frames that work for each.
Best Glasses for Different Face Shapes
Most face-shape advice comes down to two ideas: contrast and balance. Frames with some contrast to your features (angles on a soft face, curves on an angular face) tend to stand out in a flattering way. Frames that add width or visual weight where your face is narrower help balance its proportions. Use these as starting points, not limits. If a frame you love breaks the "rules" but fits well and makes you feel confident, it's the right frame.
1. Oval Face Shape
Oval faces are naturally balanced, so they suit the widest range of frames. The main thing to watch is scale: choose frames about as wide as the widest part of your face so they keep your natural proportions.
- Tend to flatter: rectangle frames, square frames, cat-eye, geometric and bold statement styles.
- Why: almost any shape keeps an oval face in balance, so you can choose by personal style.
- Watch out for: frames much wider or much narrower than your face, which can throw off its natural balance.
2. Round Face Shape
Round faces have soft curves, full cheeks and similar width and height. Frames with some structure add definition and can make the face look a little longer.
- Tend to flatter: rectangle and square frames, geometric frames and browline styles with a strong top edge.
- Why: straight lines and corners contrast with soft curves, and frames slightly wider than they are tall add length.
- Round frames can work too: you don't have to avoid round glasses just because your face is round. Choose a size and proportion that adds definition: a frame wide enough not to look undersized, a thicker or darker brow line, or a slightly angular round or geometric-round shape. These details give a round frame the structure it needs.
3. Square Face Shape
Square faces have a broad forehead, defined angles and a strong jawline. Curved frames soften these lines and create an attractive contrast.
- Tend to flatter: round frames, oval frames, aviator (pilot) frames, thin metal frames and rimless styles.
- Why: curved lines balance angular features, and a lighter rim keeps the frame from competing with a strong jaw.
- Watch out for: very boxy, heavy frames that repeat the angles of the jaw. Square frames can still work if they have softened corners.
4. Heart Face Shape
Heart-shaped faces are wider at the forehead and cheekbones and taper to a narrower chin. The goal is to balance the upper and lower halves of the face.
- Tend to flatter: oval and round frames, aviators, light metal frames, rimless styles and frames that are slightly wider at the bottom.
- Why: lighter, softer frames keep attention away from a broad brow, and a little width at the lower edge balances a narrow chin.
- Watch out for: very top-heavy frames with thick brow lines or heavy decoration on the upper rim. A subtle cat-eye can still work if the upsweep is gentle.
5. Diamond Face Shape
Diamond faces have wide, often high cheekbones with a narrower forehead and jaw. Frames that add width at the brow line help balance the cheekbones.
- Tend to flatter: cat-eye frames, oval frames, browline styles, rimless frames and soft round shapes.
- Why: upswept or detailed top edges draw the eye up and add width where the forehead is narrower, while curves soften the cheekbones.
- Watch out for: narrow frames that sit inside the cheekbones and make them look even wider.
6. Oblong or Rectangle Face Shape
Oblong faces are noticeably longer than they are wide, with fairly straight sides. Frames with more depth help shorten the face visually and add width.
- Tend to flatter: deeper square or round frames, oversized frames, aviators and frames with decorative or contrasting temples.
- Why: taller lenses fill more of the face vertically, and detail at the sides adds width.
- Watch out for: small, very shallow frames, which can make a long face look longer.
Still unsure? Try frames on virtually. Frames that support virtual try-on show a "Try On" button on the product page, so you can compare a few shapes on your own face before deciding.
Why Size Matters as Much as Shape
The right shape in the wrong size rarely looks right. A frame that's too wide can look oversized and slide down your nose, and one that's too narrow can squeeze your temples and make your face look wider. When you compare frames, check that:
- The total frame width is close to the width of your face at the temples.
- Your eyes sit near the center of each lens, not close to the inner or outer edges.
- The bridge rests comfortably on your nose without pinching or slipping.
- The top of the frame sits near your brow line rather than far below or above it.
The easiest way to get the size right is to compare a new frame with a pair that already fits you. Our Eyeglass Frame Size Guide explains which measurements to compare. If standard frames usually feel too wide, read How to Choose Glasses for a Small Face: Fit, Sizes & Styles.
Other Factors to Consider When Choosing Glasses
Your face shape is only one part of choosing a frame. Also consider:
- Frame material: titanium and thin metal are light and understated, while acetate offers more color and a bolder outline. See Choosing the Right Frame Material for a full comparison.
- Color: dark or high-contrast colors make a frame shape more noticeable, while clear, light or translucent frames soften it. This is useful if you like a shape but want it to feel less dominant.
- Your prescription: progressive lenses need enough lens height for their viewing zones, and stronger prescriptions often look and feel better in smaller frames.
- Lifestyle: think about whether the glasses are for all-day wear, work, reading or occasional use.
- Personal style: the best glasses are the ones you feel comfortable and confident wearing.
Find Your Perfect Pair at Youtop Optical
Youtop Optical offers eyeglass frames in round, square, rectangle, oval, cat-eye, aviator, geometric and oversized shapes, in materials from lightweight titanium to bold acetate. Start with the shapes suggested for your face, compare the measurements on each product page with a pair that fits you, and use virtual try-on where it's available to see the frame on your face.
See Frames on Your Own Face
Try a few shapes virtually to see which ones suit your face before you order.
Prescription lenses from $29.99, free shipping on every order, and a 90-Day Worry-Free Frame Warranty.
Frequently Asked Questions
Can I wear round glasses if I have a round face?
Yes. Angular frames are the classic suggestion for round faces, but round frames can look great too. Choose a frame wide enough for your face, and look for details that add definition, such as a thicker brow line or a slightly angular round shape.
What if my face is a mix of two shapes?
That's very common. Read the advice for both shapes and look for frames that appear in both lists. Oval, rectangle and softly geometric frames are often a good middle ground.
Is face shape or frame size more important?
Both matter, but size is what makes glasses comfortable and stable. A flattering shape in the wrong size can slide, pinch or look out of proportion, so check the measurements once you've chosen a few shapes you like.
How can I tell if a frame suits me before I buy?
Compare the frame's measurements with glasses that already fit you, and use virtual try-on on frames that support it to preview the shape and color on your face.