Glasses Measurements: How To Find Your Frame Size

Glasses Measurements: How To Find Your Frame Size

Your eyewear shouldn’t pinch your face or your wallet. You need affordable specs that look expensive but won’t make you consider selling a kidney. Finding the perfect eyewear involves measuring certain aspects of your face and also shopping around for what you actually need. 

The experts at Stoggles are here to help. We’ll teach you how to get your measurements, what to do with them, and what kind of options you have with safety eyewear. Hint: You aren’t limited to the same uncomfortable goggles you’ve been wearing. 

Measure This

Before you can shop for eyewear like a full-blown adult (and not just settle for the pair that looked the least awkward at the big box store), you’re going to need your measurements. We’re going hard, so we’re going to need a few tools to get the job done. You will need:

  • A mirror or camera (like the one on your smartphone
  • A ruler
  • A notepad (to record your findings

There’s a hack here. If you already have a pair of eyeglasses that you love, you can simply measure them and shop for the same size. We’ll cover how to measure your current frames in a moment. 

Measuring the Bridge of Your Nose

The bridge of the nose is the space between the nose where it connects between your eyes and the tip. You can have a high bridge, a low bridge, or a normal bridge. To determine what you have, take a side-facing selfie to see how the bridge of your nose corresponds to your cheekbones. 

  • If the bridge of your nose is close to your cheekbones, you probably have a low nose bridge. You’ll want to find eyewear that measures between 16-18 mm.
  • If the bridge of your nose is further away from your cheekbones, you probably have a high bridge and will want to opt for glasses with a bridge measurement between 19-24. 

If the bridge of your nose doesn’t look close to your cheeks or far away, or if you can’t decide, it’s worth testing out both low and high bridge sizes to see which feels best. The bridge width measurement will help determine how far apart your lenses are, so it’s important that you get a good fit. 

If normal-bridge people wear low bridge fit glasses, these glasses tend to sit higher up, which can either look bad or leave too much of a gap below. This makes the wearer feel uncomfortable.

The Stoggles Size Guide

A frame can be oh-so-chic, but if it doesn’t fit, it’ll never be the right frame, ya feel? That’s why the Stoggles Collection comes in a medium-size and low-bridge fit.

When you’re shopping, keep in mind that our lens, bridge, and temple measurements can differ slightly. Sure, a millimeter here and there isn’t a huge difference, but it’s definitely worth checking the size guide on each frame you’re yearning for. 

Measuring Your Temple-to-Temple Distance

The temple-to-temple distance is usually considered to be the width of the pair — the distance between one arm and the other. (Note that sometimes just “temple distance” can refer to arm length.)

Here’s how to measure your temple-to-temple distance:

Hold a ruler horizontally across your face (preferably in front of a mirror). Then, measure the distance from the right temple to the left. You can also use a ribbon or string to mark the distance and then measure the length of the string or ribbon against a ruler. 

Eyewear is generally available in frames that are between 130mm to 150 mm in length. If you’re unsure, size your frame width down rather than up to avoid glasses that are too large for your head and might slide off. A great way to tell if the fit leaves something to be desired is to look if the arms bend either way going to your ears. If the glasses are too small, the arms will bend outward, and alternatively will bend inward if they are too large.

Arm Length

Sometimes the arm length is also referred to as the temple length. The length of the temple is the measurement that determines how long the glasses' arms extend from your lenses to your ears.

Temple (arm) lengths are usually available in standard sizes, and you can judge the size that will fit you best by using your temple distance. For larger temple distances, you’ll use larger arm lengths — like 135 to 150 mm. 

Measuring Your Glasses

If you have that one pair of glasses you love, you can use them to determine the size of other eyewear. Measuring your eyewear is easy, and you’ll need a tape measure or ruler to get the job done. 

Measuring Your Bridge Width

Start by getting your bridge width, which can be obtained by measuring the space between the two lenses. You’ll normally find a measurement between 14 mm and 24 mm. 

Measuring Your Lens Width

The benefit of measuring your eyeglasses is that you can measure the width of each lens individually. To calculate the lens width, measure it from its widest point (usually located at the top of the lens). 

If you’re shopping for eyewear that’s only available in total temple distance, you can measure the entire length of your eyewear from arm to arm or double the lens width and add the bridge width. 

Measure the Arm Length

Measuring the arms of your eyewear can get tricky because the arms of your eyeglasses bend at the ears. Using a ruler or measuring tape, take two measurements; one from the place where the arm meets the frame of the glasses to where it starts to bend. The second measurement should be the portion of the arm that bends behind the ear. 

The total measurement will be both measurements added together. 

Measure the Lens Height

Some eyewear is available in specific lens heights. If so, you can measure the height of each lens from bottom to top. Make sure to measure in the middle of each lens to get an accurate measure. 

Tips and Tricks

Now that you have your face measurements and/or frame measurements, you’re ready to shop. Determining which eyewear is best for you depends on your measures, your style, your face shape, and what you need in terms of safety or corrective lenses.

Here are some hacks to help make the job easier:

Shop By Face Shape

Everyone has a face shape, be it oval, heart, or square:

  • Round, oblong, or oval faces tend to look more balanced with square or rectangle frames.
  • More angular face shapes, like square or chiseled, look softer with round frames or aviator styles

New glasses can boost your look, so if you match your face shape to your frames, you can wear them with confidence, knowing you’ve leveled up, not leveled down. 

Get Corrective Lenses When You Need Them

Even if you only need reading glasses, it’s worth investing the time and effort in getting your eyewear with the corrective lenses you need. Numerous frame manufacturers make their frames available with corrective lenses, even if you need them in something like safety glasses. 

At Stoggles, we make it easy for you to get the protective (and stylish) safety eyewear you need with the corrective lenses that make it possible for you to see clearly. Simply upload your prescription to our website, and we’ll take care of the rest. 

Don’t Settle

If you end up with eyeglass frames that don’t fit, don’t wear them. While many websites offer a virtual try-on, that doesn’t necessarily mean that the frames that look good in 2-D will fit well in real life. 

Check with the manufacturer before you buy and make sure you know their return policy in case the glasses size you buy is incorrect. 

Upgrade Your Protection 

While you’re shopping for eyewear, consider upping your level of eye protection. More than just wearing sunglasses when you’re in the sun, eye protection is a way to protect your vision and your eye health for life. At Stoggles, it’s literally what we do. 

Protect and Serve

Stoggles was created to fill a gap in the market. We saw a need for protective eyewear that was also stylish and comfortable. We thought that safety should come first, but style also first. What’s the point of having a great pair that doesn’t look and feel great? 

If you don’t like them, you won’t wear them. That’s why every pair of Stoggles is comfortable and stylish (with a bunch of top safety features), so you’ll actually wear them. 

ANSI Z87.1-2020 Impact Resistance

Sure, you want shatterproof lenses, but not just any shatter resistance will do. The ANSI Z87.1-2020 certification means that your eyewear has been tested for shatter resistance in two important ways:

  • High impact. During this test, a weighted cone-shaped object is dropped onto the lenses. 
  • High velocity. This test involves firing a ball bearing directly at the lens.

To pass both tests, the eyewear can’t shatter, and since Stoggles don’t, you’ll find every pair of them with the ANSI seal of approval. 


Fogging glasses are dangerous and annoying. Removing glasses to wipe them down puts your eyes at risk. Stoggles are treated with an anti-fog coating at the time of manufacture to provide long-lasting protection against fog. It’s a better and easier solution than anti-fog wipes and drops, which can cause your lenses to look blurry.

We spent nine months prepping this formula, ensuring it’s as flawless as our style. Our dip formula is more even and long-lasting than sprays you’ll find on lesser models. Facts. 

UV Protection

The level of tinting on your eyeglasses has nothing to do with the level of UV protection you’re getting. In fact, your eyewear doesn’t have to have any tinting at all to filter away harmful ultraviolet rays. 

Stoggles are made with ultra-lightweight polycarbonate material, which is naturally UV-blocking with zero tinting required. They’ll give you a better level of UV protection than bargain bin glasses at the big box store and definitely give you a higher level of sophisticated frame style. 

Blue Light Blockers

Blue light comes from both the sun and the screens of your favorite devices. Since we’re exposed to blue light so frequently (like while reading this amazing article), it’s a good idea to protect our eyes from it. Like UV light, it can penetrate the eye and reach the retina. 

Wearing blue light blockers protects your eyes from this intrusive light and can even help you avoid eye strain and fatigue associated with computer use. All Stoggles have blue light-blocking filters injected into the lenses at the time of manufacture to keep your eyes safe. 

Side and Top Shields

Your regular eyeglasses leave your eyes vulnerable at the sides (near the temples), at the brow line, and under your eyes near the cheekbone, especially if you rock that chiseled jawline. Side and top shields fill in the gaps, making sure your eyes have 360-degree protection from splashes, spills, and flying objects. The side and top shield design is streamlined and understated for protection that doesn’t look like protection. 

Stoggles Measure Up

Stoggles are available in numerous frame shapes and colors and two different frame sizes (medium and low-bridge fit), so you can get the look you want with a custom fit you love. You’ve got your measurements, now put them to good use. Grab the only eyewear that can protect your eyes and your style simultaneously. 


How to pick the right glasses for your face|Business

Tips for Choosing the Best Sunglasses - American Academy of Ophthalmology

ANSI/ISEA Z87.1-2020: Current Standard for Safety Glasses|American National Standards Institute

Share Article
View All Articles