How Wide Should Glasses Be? How Do You Know if Your Glasses are Too Big or Too Small?

Finding well-fitted frames that have the best position on your face or sit the best on your face has a lot to do with the size of your head and the space between your eyes. How do you know if your glasses are too big? If a frame feels loose and falls off your nose, it probably fits this bill. How do you know if your glasses are too narrow? They will likely be too tight and uncomfortable. If these can not be fixed with a simple adjustment, you may be dealing with the wrong frame size and should choose frames that fit. 

We’re not in the business of cramping your style. However, if your frames end up being wider than your face or sitting high above your brow line, or if the bridge isn’t a match for the arch of your nose, then you may need a different frame. Why? Because without a properly fitting pair of specs that rest comfortably on your face, you won’t wear them, no matter how much you love them. We list our frame measurements online, so you have all the information you need to find out if your desired frame is a good fit. Not to worry: if terms like “lens width” and “temple length” sound like Greek to you, allow us to translate. You can find your perfect pair and dazzle your less well-informed friends with your eyewear expertise all in one go. Similar to romantic partners, pointy-toed shoes, and fancy brimmed hats, the wrong fit will have you feeling off-kilter. So, let’s stay focused on the two most important factors in finding the frames that will be the Jim to your Pam, the Manolo Blahniks to your Carrie Bradshaw, the wink to your smile: personal style and proper fit.

Here’s the lens lowdown: whether you’re wearing prescription glasses or readers, you’ll need to take both lens width and lens height into consideration. Lens width is the horizontal width of one lens at its widest point, and lens height is the vertical length of one lens at its tallest point. These key measurements are essential to ensuring both your new glasses frame your face flawlessly. The pupillary distance, or distance between your pupils (PD), should be equally distributed between the two lenses. An eye exam* can help you find this magic number and in turn, the lens size that will help you find the sweet spot that centers your eyes within your lenses. If your lenses are spaced too far apart, your eyes will appear too close together, while lenses that are too close together will give your peepers a wide-set look. Pssst—if you’re a glasses-wearer in the Twin Cities looking to face up to your face-framing woes, hightail it over to our Mall of America location for a comprehensive eye exam with a virtual eye doctor at just $59. Chins up, buttercups! Your glass slipper awaits.

Lens Sizes

This is the measurement of the “arms” of the frame from each screw to the temple tip, and it’s also the key to making sure your glasses sit comfortably behind your ears. How should glasses fit on/behind your ears? Temple arms should fit evenly and horizontally along your face, with the curve of the temple fitting snugly and comfortable around your ear. If your glasses pinch your ears, that’s a sign that your arm length is the perpetrator of an improper fit. Your frames should fit properly from nose to ear.

How tight should your glasses fit? Good question. Seek out a frame that is slightly wider than your face for the best-fitted frame. As a general rule of thumb, your frames should be no more than a finger’s width from your face. A frame width that’s too narrow will make your head look wider and apply too much pressure to your noggin, while a frame that is too wide will make your face look narrower and lead to your glasses slipping whenever you turn your head. Frames that fit properly will feel comfortable and turn the heads of others, which is undoubtedly the outcome we’d all prefer to see. Read on to find the frame measurements that will give you that barely-there sensation.


∙Wide frames start at 140mm and go up from there.

∙Average frame measurements fall between 131 mm-139 mm.

∙Narrow frames have widths up to 130 mm.

How do You Choose a Shape That Will Complement Your Face’s Natural Features?

The most important aspect of choosing the correct frame shape is that you’re head-over-heels in love with them. The second most important consideration is that your glasses complement your natural-born face shape. If you’re working with more angular features, round, organic shapes will suit you well. If you have a round face, rectangular-shaped frames will likely get you the compliments you deserve. If your face shape sits squarely in-between (and many faces do), you’ve been cursed with looking good in practically everything.

It’s all about striking the balance between what your mama gave you and what makes you feel the most badass you ever have. Remember, confidence will always give you what mother nature didn’t.

If you’re in the mood for a deep-dish foray into the fine art of framing a face shape, take a gander at our Face Shape blog. For now, consider this your beginner’s guide to all the shapes you need to know so you can find frames that help you be your most magnificent self.

Championed by Marilyn Monroe, the sassy librarian look is perfect for anyone looking to bring a slight lift to their look and a little ‘rawrrrr’ to their cheekbone area.

Overlook in Red

Overlook | Color 01

Model Wearing Overlook in Red

The most versatile of the frame shapes, when you go rectangular, you really can’t go wrong. These are just eyewear facts, and that’s all we have to say about that.

Number Cruncher in Tortoise

Number Cruncher | Color 19

Model Wearing Number Cruncher in Tortoise

For those looking to flaunt how well-read they really are, this frame style doesn’t let the top frame or bottom frame get in the way of their reading material. Sometimes topless, sometimes bottomless, always smart.

What Inheritance? in Blue

What Inheritance? | Color 59

Model Wearing What Inheritance? in Blue

Round frames are where playful meets sophisticated. Go bold with a chunky round or let a barely-there oval compliment your prominent cheekbones and jawline.

Waylaid in Blonde Tortoise

Waylaid | Color 04

Model Wearing Waylaid in Blonde Tortoise

Indeed, it is hip to be square. Like rectangular frames, square frames also complement most face shapes and casually tell the world that you’re an expert on something very odd and very specific without having to say much.

Kvetcher in Tortoise

Kvetcher | Color 19

Model Wearing Kvetcher in Tortoise

How Should Glasses Fit on Your Nose? It’s Time to Talk Bridges.

Well-fitting eyewear isn’t all about the eyes. When you venture into the world of finding perfectly fitting glasses, kindly mind the gap. Bridge width refers to the distance between the lenses of your frame, i.e., the part of the frame that sits directly above your nose. A proper-fitting bridge size will sit not too high, not too low, but just right on the bridge of your nose.

If you’re unfamiliar, a keyhole in the eyeglasses world is like a regular bridge but fancy and is aptly named after its doppelganger: the keyhole. Often times the keyhole bridge is thoughtfully designed not only as a decorative feature but also as a way to make sure your glasses won’t leave unsightly red marks on your face. This is all thanks to the keyhole design moving the pressure from the bridge of your nose to the sides. If you know you have a difficult bridge to fit, keyhole glasses are likely a good solution for you. Next time you see a more intricate bridge, aka keyhole bridge, you’ll know the fashion is on, and the pressure’s off.

Keyhole Bridge

Board Stiff | Color 50

Like a horse’s saddle, a saddle bridge is designed to distribute the weight of the frames evenly over the top and sides of the nose. Yes, your nose is the horse in this scenario. And much like the horse, a saddle bridge is universally loved. How can you know if your saddle bridge width isn’t a good fit? Be mindful of any space between the top of your nose and the bottom of the bridge. If this is the case, the bridge is too small. If you find your saddle frequently sliding south, then the bridge is too wide.

Saddle Bridge

Case Closed I Color 19

A great option for those with low nose bridges or those who just like things to stay put, adjustable nose pads offer up a snug fit and make sure your glasses stay where they belong (upon your face towards the eyes, in case you were wondering). Patrons with multi-focal and high-prescription lenses tend to be especially fond of these magical little instruments for keeping your lenses in your line of sight.

Adjustable Nose Pads

Paradox | Color 59

Frequently Asked Fit Questions

Well-fitting eyewear isn’t all about the eyes. When you venture into the world of finding perfectly fitting glasses, kindly mind the gap. Bridge width refers to the distance between the lenses of your frame, i.e., the part of the frame that sits directly above your nose. A proper-fitting bridge size will sit not too high, not too low, but just right on the bridge of your nose.

If you’re reading this to ascertain why the new pair of glasses you acquired are more Goodwill tuxedo than Cinderella’s slipper, fear not, dear reader. As you venture off to explore our brilliantly bold assortment, keep in mind that every head is unique, and sometimes the right fit will still need minor adjustments. If you’re experiencing any kind of eye strain, you can always visit an eyebobs retail store for a free adjustment or bring your eyebobs to your eye doctor.

Your glasses should not touch your eyelashes, dear reader. They should sit comfortably at the tip top of your bridge. If you find your glasses are doing otherwise, ask your optician to make some adjustments, or you might need to find another frame.

Depending on fit, your glasses might touch your cheeks. Ideally, when you smile big, your glasses will hardly move. If your toothy grin has them a-wigglin’ and wobblin’, you might be better off with a better-fitting frame.

If you and your new frames aren’t seeing eye-to-eye, we’re always happy to help. Our numero uno goal is to ensure your glasses fit like they were made to be your one and only. We offer free returns in the first 90 days and free adjustments to ensure you can become the best vision of yourself. If you have any questions, drop us a line at omfg@eyebobs.com, give a ring at 866-393-2627, or at the chat box on our website.

Yes! Just like having a bespoke suit tailored, it’s best to make these adjustments in person. While we’d be overjoyed to see your smashing self in our stores, we get that the long-distance thing isn’t for everyone. If your new eyeglass frames aren’t a secure fit, most qualified optometrists will tailor them gratis.

If a teensy tweak is all you need, give our optical experts a call at 866-393-2627 for instructions on how to adjust your glasses at home.

Prepare for a Fantastic Fit

Prepare for a Fantastic Fit

Now that you’ve journeyed through our treasure trove of optic wisdom, you have all the tools you’ll need to go forth in your new frames and see clearly. We officially declare you to be in possession of a good eye for a great fit.

Now that you’ve journeyed through our treasure trove of optic wisdom, you have all the tools you’ll need to go forth in your new frames and see clearly. We officially declare you to be in possession of a good eye for a great fit.