How To Measure the Nose Bridge for Your Glasses (2023)

Bored at your desk? Contemplating why your glasses continually slip forward when you look down at your phone? We thought so. Friend, you’re in the right place. In this informational article, we’ll cover how to get the perfect fit so that you never experience eyeglass slippage again.

While we’re at it, the team here at Stoggles (because that’s where you’ve landed in your internet search) will drop some serious knowledge about eye safety that you probably haven’t considered.

In just five minutes of reading, you’ll be able to fit glasses better than an optician and dole out unrequested safety tips to your unsuspecting friends. Let’s get started.

Bridging the Gap

The reason why your glasses continually slip down, or conversely, the reason why they feel like they are squeezing your nasal cavities closed, is because the bridge on your particular frame size isn’t properly fitted. Unlike over-the-counter readers or sunglasses, daily eyewear should be fitted by several measurements, including a bridge measurement and the right lens height.

The bridge width is the distance between one lens (inside of the frame) to the other lens inside the rim. When you look at the inside of your eyeglass frames, you’ll see three numbers:

  1. Eye size number. This is the number that represents the width of your lenses.
  1. Bridge size number. This number is the measurement that determines the bridge (the distance between the two nose pads).
  1. Temple length number. This is the length of the arms of your glasses that sit on your ears.

Every pair of custom-fitted glasses should have these frame measurement numbers somewhere on the frame, making it easy for you to get a good fit if you need to replace them.

Units of Measure

Eyeglass measurements are measured in millimeters. Most bridge sizes measure between 14mm and 24mm, but you can find specialty sizes if you need them. If you have a low bridge measurement, you will typically need a pair of frames that has a bridge measurement of 16-18. High bridge measurements are between 19-21.

Measuring Your Bridge

If you haven’t visited your optometrist or optician in a while and want to order a new pair of eyeglasses without a proper fitting, you can measure your bridge width at home. Start by getting a mirror and a camera.

(Video) Flo Mask Pro - Measuring your nose bridge

Using the mirror to help you, take an Instagram-worthy selfie of your side profile and observe the position of the bridge of your nose.

  • If the bridge of your nose is closer to your cheekbones, you have a low bridge.
  • If the bridge of your nose is further from your cheekbones, you have a high bridge.

Next, you’ll want to consider the position of your nose. If you have a high bridge, glasses frames with a high bridge close to the brow line may be more comfortable than a lower bridge fit.

Conversely, if you have a low bridge, you’ll probably find that frames with a lower bridge or curved bridge fit better and slip down less. If you still have issues, you can try prescription glasses with adjustable nose pads to help ease pressure and give you a more custom fit.

What About Those Other Measurements?

To get the perfect pair of glasses, you need all three measurements. An optician can fit you best, but you can hack the system by using the above method for finding your bridge width and the hacks below to find the eye size number and temple length.

Eye Size

To measure your eye size, you’ll be measuring the distance between one temple to the other. Standing in front of a mirror, hold a ruler in line with the inside of the temples. Convert the inches to millimeters by multiplying the number by 25.4 (or just using a free unit converter online).

Add this to the bridge width, and you’ll have the frame width or eye size.

Temple Length

There are standard sizes for the arm lengths of your eyeglasses based on your temple width. You’ll take the temple width (the total width measurement that includes your bridge width) as a guide to determine which standard arm length you’ll need.

  • Temple widths that measure 129mm or less should choose an arm length between 135mm-140mm.
  • For temple widths that measure 130mm-139mm, arm lengths between 140mm and 145mm are perfect.
  • If you have a particularly wide temple width (larger than 139mm), you’ll need a temple arm length of 150mm or higher.

Finding the right frames on your own can be difficult. Armed with your prescription, an optician can help you find the perfect glasses based on your measurements, your face shape, and even your favorite frame styles.

(Video) Nose Bridge Measurements for Eyeglasses : Eyeglasses Basics

What About Safety Eyewear?

Glad you asked because that’s kind of our thing here at Stoggles. If you’ve never worn safety eyewear or don’t think you need them, think again.

Each day, more than 2,000 workers in the U.S. sustain eye-related injuries. Experts say that 90% of these injuries are completely preventable simply by wearing protective eyewear. If you wear corrective lenses, you aren’t excluded. Regular eyeglasses aren’t designed to protect you like safety eyewear is.

Here’s what proper safety eyewear can do for you:

Won’t Break Up With You and Leave You Injured

Unlike your wretched ex, safety eyewear is designed to protect your heart-er-eyes from injury. In fact, Stoggles eyewear is all ANSI Z87.1-2020 certified, which means it won’t shatter from impact.

Besides that the metal pellet test won’t make them break, perhaps the side and top shields are what take the cake (yes, that rhyme was intentional). The side and top shields are a critical safety feature that fully protects your eyes from flying debris or gross splashes and prevent you from accidentally touching your eye after cutting a ghost pepper.

But, unlike those geeky glasses from middle school, with Stoggles, you’ll make the best-dressed list every time. We did the math: Function + Style = Stoggles. You don’t have to compromise on either.

Trusting your regular eyeglasses while you’re working on a project, doing yard work, or playing a pick-up game can leave you with shards of glass in your eye if you take a hit to the face. Safety eyewear keeps your vision protected, no matter what comes your way.

Protect You From Blue Light

Yep. You’re exposed. You’re looking at it right now. You probably get more blue light exposure than you realize because it is emitted from the sun and from devices like computers, tablets, smartphones, and televisions.

(Video) How to Choose the Right Frame Size

Blue light can penetrate the eye and reach the retina, possibly causing vision damage and definitely causing eye strain and fatigue. Blue light-blocking lenses filter out blue light to keep your eyes safe. Blue light blockers do for your eyes what that fancy wrist pad does for your wrists after typing for eight hours a day.

Helps You Avoid Foggy Situations

If you are a regular glasses wearer, you understand the foggy frustration with lenses that won’t stay clear. Anti-fog wipes may work temporarily, but for lasting results, you’ve got to have anti-fogging lenses.

Stoggles eyewear, for instance, is treated with an anti-fogging solution that prevents our eyewear from fogging in even the stickiest of situations (because it’s a coating, not a spray). From face masks to outdoor tasks, you’ll never end up steamed over foggy lenses.

Offers You Sun Protection

Ultraviolet radiation is damaging to your eyes. UVA and UVB rays can reach your retina and cause early onset macular degeneration, a condition that can rob you of your eyesight at an early age (we’re talking 40s and 50s).

Wearing sunglasses can help because sunglasses usually offer UV protection. For cloudy days, however, you still need protection, and you need protection, too, when you are exposed to UV rays indoors.

Stoggles are made from polycarbonate material, which is crystal clear and naturally UV-blocking, so you can be protected without heavy tinting. While Stoggles don’t come in tinted lenses, they’ll protect you more than regular big box store sunglasses due to the material and the amount of coverage.

Where To Shop

Stoggles, of course! We’re the one-stop shop for safety eyewear that offers top-of-the-line protection with features that you can’t find anywhere else. All Stoggles come standard with ANSI Z87.1-2020 certification, anti-fog lenses, and UV and blue light-blocking protection.

Finally, we wrap it up in a stylish package with options that let you custom-build your protective eyewear.

(Video) Glasses for an Asian nose (At home tricks to get glasses to fit an Asian/wider/smaller nose bridge)

Side and Top Shield Technology

Unlike some safety glasses manufacturers, we avoid wraparound lenses. They don’t keep the top of your eyes safe, and if you wear corrective lenses, they can warp your vision and deliver a weird, funhouse mirror effect.

Instead, we use side and top shields to protect vulnerable areas around your eyes, keep your style fresh, and your vision normal. We really don’t think warped vision and safety eyewear is a good match, so we’re swiping left on that combination.

Custom Fit

We believe that safety eyewear won’t be effective if it isn’t comfortable because if it isn’t comfortable, you probably aren’t going to wear it. And if you don’t wear them (or take them off from time to time because of your glasses-based headache), your eyes are exposed to all sorts of threats — suspicious chemicals, allergies, rouge baseballs from your neighbor's kid. Basically, everything that makes us cry, and yes, that includes the effects of cutting onions.

That’s why we offer several sizes and different frame shapes so you can have a customized fit for your head and aesthetic preferences. It’s our way of saying you really can have it all.

Measuring Your Safety

Learning to measure your face to get the perfect fit in your eyeglasses is definitely high-level adulting. Making sure you have safety eyewear to protect your vision is a level up. At Stoggles, we make it easy to get the custom fit you want, the style you love, and the protection you need.


Eye Safety | NIOSH | CDC

Study Highlights the Need for Workplace Eye Safety Awareness | Johns Hopkins Medicine

(Video) How Should My Glasses Fit On My Nose

Convert inches to mm |

How to Measure Face for Glasses Frames | Eye Care Center


How do you measure nose bridge glasses? ›

Measure across the bridge of your nose. On your glasses, this is known as your bridge width. You may also hear it referred to as the distance between the two lenses. The bigger the number, the wider the bridge size and nose bridge.

What is bridge size on glasses? ›

The bridge width measures the shortest span between the two lenses in your frames. (Counterintuitively, it's not just a measurement of the part of your glasses frame called the bridge.) Smaller bridge widths accommodate narrower noses, whereas glasses with larger bridge widths are best for wider noses.

HOW IS lens bridge size measured? ›

Bridge Size - measurement is the distance in millimeters between the two lenses. It is measured between the two closest points of the two lenses. Temple Size - is measured along the length of the temple, from one end to the other, including the bend.

What is bridge of nose for glasses? ›

Bridge is the part of your frame that goes over your nose, between the lenses. The bridge of the glasses should sit flush with the bridge of your nose. Nose Pads are small pieces secured under the frame bridge that rest on your nose and help keep the frame in place, while providing comfort and a snug fit.

How tall should your nose bridge be? ›

Nasal Bridge Length (n-prn)

4). The nasal bridge length is between the soft tissue nasion to pronasale; it usually measures between 45 to 50 mm, which is shorter than the Caucasian norm. To lengthen the nasal bridge dimension, dorsal augmentation or tip-derotation technique is commonly employed in Asian rhinoplasty.

Is my nose bridge low or high? ›

If you're not sure if you have a high nose bridge vs. low, take a look in the mirror. If your pupils align with the bridge, that is generally considered a low bridge; if it sits above the pupils, you have a higher bridge.

What are the 3 measurements on glasses? ›

1) The eye size number (it is the size of the lenses on your frame). 2) The bridge size number (the distance between the lenses). 3) The temple length number (it is the size of that part of your eyeglass frame, which rests upon your ears).

How do I know my size for glasses? ›

To find it, take your measuring tape and measure horizontally across the front of your frames, including any hinges or design features that stick out on the sides. Once you know the measurements of your current glasses, you can easily convert those to sizes - small, medium and large.

How do I know if my glasses are low bridge fitting? ›

What is a low bridge fit? A low bridge fit is required when the slope of the nose is either level with or underneath the pupils. If this applies to the bridge of your nose, the low bridge fit will help to stop your glasses falling or shifting onto your cheekbones.

What is the smallest bridge size in glasses? ›

Bridge size is the distance between the two lenses in millimeters and typically ranges from 14 mm to 24 mm.

How do you adjust the nose bridge on plastic glasses? ›

For plastic/acetate glasses

With a hair dryer, heat (30sec) over the bridge area and then bend the nose pieces inwards slowly until they fit comfortably on the bridge.

Does nose bridge size matter? ›

If the bridge is too small, your glasses will be situated overly high on your nose, plus they'll pinch. If the bridge is too large, the frames will slide down constantly. Eyeglass frame measurements consist of three numbers in a format like 55-16-140. That middle number is the bridge width.

How do I know if I need low nose bridge glasses? ›

To know if you have a low nose bridge, we have a simple test. Look in the mirror, and use your finger to find the top of your nose bridge. Then, notice whether your finger sits above, in-line with, or below your pupils. If it is in-line, or below your pupils, this is an indication you have a low nose bridge!

What is the average nose bridge size? ›

Most bridge sizes measure between 14mm and 24mm, but you can find specialty sizes if you need them. If you have a low bridge measurement, you will typically need a pair of frames that has a bridge measurement of 16-18. High bridge measurements are between 19-21.

What is the perfect nose length? ›

The ideal nose length (RT) is 0.67x midfacial height. A straight dorsum with no supratip break or a straight dorsum reduced to a level of 2mm below the tip creating a retroussé are both desirable.

How many inches should a nose be? ›

Different standard parameters can be employed to determine whether a nose is too large, wide, or disproportioned. The height of the nose is usually ⅔ of its length. Moreover, the length is typically between 2 – 2.2 inches.

Does bridge size matter in glasses? ›

If the bridge fit is too small, your glasses will sit too high on your nose and they'll pinch. If the bridge is too big, your frames with be constantly sliding down.

How is bridge number calculated? ›

The bridge number is determined by calculating the difference between the numbers associated with the name and birth date.

How long should your bridge be? ›

Generally, the bridge length should match the stroke length, using a longer bridge and stroke for a power shot and a shorter bridge and stroke for a finesse shot. However, using a standard bridge length, and just varying the stroke length, can be comfortable for some.

What is a measuring bridge? ›

A bridge can measure other quantities in addition to resistance, depending upon the type of circuit elements used in the arms. It can measure inductance, capacitance, and frequency with the proper combination and arrangement of inductances and capacitances in its arms. bridge.

What does 52mm mean in glasses? ›

The 52 represents the width of each lens, which is 52mm. And if you really want to get technical, the height of each lens, or the “B” measurement, is about 36mm. The New Wayfarer 52 has a small-to-medium fit, which is generally a nice fit for women.

What does 145 mean on glasses? ›

The numbers beneath the frames reflect the SIZE MEASUREMENTS in millimeters (mm). THE FIRST NUMBER (ex.54) = the width of the lenses. THE SECOND NUMBER (ex.15) = the distance between the lenses. THE THIRD NUMBER (ex.140) = the length of the temple arm including the portion going behind the ear.

What is the most important measurement for glasses? ›

Lens width is the width of one of your lenses in millimeters, from one side to the other. You might hear this called eye size. This is the most important measurement to make sure your frames fit your eyes.

How do I know if glasses are too big? ›

Glasses that are too big will feel like they're slipping off of your face and ears. They'll often be too wide for your face, with the lenses extending too far past the sides. If your eyes look a bit too close together (or close to the glasses bridge), that's another signal that your glasses might be too big.

How do I know if my glasses are small medium or large? ›

Picking the Right Lens Height and Width

To determine which lens size is right for you, know that a small lens width is 50mm or less, medium is between 51mm and 54mm and large is any lens wider than 55mm. Your eyes should be centered within your lenses.

Is there an app to measure your face for glasses? ›

EyeMeasure enables you to measure your Pupillary Distance (eye to eye) & now Segment Height instantly at near and far distances. No mirrors, credit cards, tape measures or objects needed. It's accurate to up to 0.5mm for the perfect prescription glasses.

How do I choose a bridge for my nose goggles? ›

If the goggles are leaking during use and tension adjustments will not solve the problem, switching the nose bridge should help. Usually, if water is leaking from the inside edges near your nose, switch to a smaller nose bridge, and if water is leaking from the outside edges, switch to a larger nose bridge.

What is the number on the nose piece of my glasses? ›

If you take a look at your eyeglass frame, you will see that the first number will be from 40 mm to 62 mm. A second number is also a two-digit number that is 16, which represents the bridge size. It is the distance between the lenses. Also, it is the bridge that rests upon your nose.

How do I get a good nose bridge? ›

Grasp the bridge of your nose with your thumb and index finger. Use your other index finger to push the tip of your nose upwards. Then, pull your upper lip down and release to exert pressure downwards against your index finger. Repeat 10 times, and then relax.

What does a low bridge fit look like? ›

On a face with a low bridge, the nose sits in line with or below the pupils. In a high bridge face, the nose sits higher on the face. As you may have already guessed, low bridge fit glasses are suited for those with lower nose bridges — they're also great for those with higher cheekbones.

How do I know if I have a low bridge? ›

Locate the top of your nose bridge with your finger. Then, make sure that you align your finger above, in line with, or below, your pupils. You have a low nose bridge if it is in line with or below your pupils.

What is low bridge fit vs regular? ›

Low bridge fit glasses are designed slightly differently from regular glasses, to offer increased grip and ensure your glasses don't fall down your face. They feature larger nose pads with additional support, which rest on the side of the nose rather than directly on the slope of the nose.

What does size 49 mean in glasses? ›

It's worth noting that an average 'medium' sized frame will have a lens width range of anywhere from 46-49mm. A frame that has a lens width of under 45mm will typically fit on the petite side and a lens width of over 50 will provide an oversized or larger frame fit.


1. Glasses for Low Nose Bridge | EyeBuyDirect
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4. How To Find Glasses for LOW NOSE BRIDGES Ft. EyeBuyDirect | INMYSEAMS
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