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Do Sunglasses Have Sizes? How to Determine?

Do Sunglasses Have Sizes?

Have you ever wondered why that pair of Aviators looked cool on your friend’s face but ended up looking comically big on yours? No two faces are the same, so there will always be a chance that what might look good on one person might not fit or suit the other. Even if the model is the same, the size of the frame plays a crucial role in the fashion as well as the functionality of the eyewear. Since size matters, the question is do sunglasses have sizes?

Yes, they definitely do have sizes! However, it also depends on the brand whether they provide their frame designs in different sizes. A vast majority of stylish sunglass frames come in one size but some styles like the Ray-Ban Aviators come in different sizes and fits. Choosing the right size of sunglasses becomes crucial not just for fashionable looks but also to ensure comfortable vision. You don’t want to end up with a pair of sunglasses that clash with your facial features and either pinches your nose or keep slipping off the bridge of it. But how to measure sunglasses size?

How to determine sunglass frame size?

While buying a pair of sunglasses, have you ever noticed the numbers printed on the arm? Like, [50-20-150]? These numbers are the frame dimensions that help you determine which frame is a perfect fit or closest to your old pair. To understand how to measure sunglasses size, you need to be aware of these three basic dimensions:

Eye size

It is the width of your lenses at the widest part. This number is usually printed first in the sequence and is typically the most important factor in determining how the frame would look on you. The usual eye size is anywhere between 40 to 63mm.

Bridge size

This is the second number in the sequence which measures the distance between the lenses. It measures from the innermost side of the lens to the same spot on the other lens across the bridge. The bridge size is crucial in learning how to calculate sunglasses size and the comfort factor. The typical bridge size may range between 14 to 24mm.

Temple size

The third in the sequence is the size of the arm of the frame till the point right before the slope. The measurement of the temple size begins at the hinges of the frame and continues in a straight line till the point where it bends down.  It usually measures from around 120 to 150mm.

If you have a favourite pair of sunglasses, these dimensions will help you get an accurate idea of your current frame size. Don’t worry, at The Eye Lab, we present you with a massive range of high-end brand sunglasses to choose from! We are sure that you will soon find a new favourite pair too!

How to calculate sunglasses size?

Have you ever been to an eyewear store and turned blank when the storekeeper asked whether you know your sunglasses size? Learning how to measure sunglasses size and knowing your requirements beforehand makes it easier for you to shop for a pair of sunglasses that best fit you.

Here are 4 essential tips on how to determine sunglass frame size:

1) Make sure that you keep a note of the frame dimensions of any of your current pairs of sunglasses that fit you perfectly. You can also carry your favourite glasses with you to the store so that the salesperson can help you find the perfect size and style that suits your face. Click a picture of the dimensions on your phone to make your sunglasses shopping efficient and worth the money!

2) Oops! Don’t own a nice pair of sunglasses that fits you well? Don’t worry, here’s how to measure sunglasses size without having an existing pair to refer to. If you are unsure about your measurements, you can measure the distance between your temples to find the size that suits your face the best.  Stand in front of a mirror and place a straight ruler parallel to the distance between your temples. The distance between the temples gives you a precise idea of the frame size and design that you can rely on.

3) Here’s an interesting way to decide your lens size/eye size.  Use a credit card! To measure the width of your lens, stand in front of the mirror and hold a credit card vertically, parallel to your eye. Place the card in such a way that one edge of the card is on the centre of your nose and the other end of the card will help you decide your lens size.

  • If the other edge of the card reaches the end of your eye, your lens size is standard.

  • If the other edge of the card reaches beyond the end of your eye, your lens size is small.

  • If the other edge of the card does not reach the end of your eye, your lens size is large.

  • So the next time someone asks you how to calculate sunglasses size, you have got the trick in your wallet!

4)  When it comes to finding the right sunglasses size, along with comfort, the style also matters. Make sure that your frame width goes well with your face size. Wearing too big frames or too small frames may make your face look visibly uncomfortable or even comical. For that, you need to have a basic idea of what your ideal frame size should be according to the shape of your face.

Here’s a quick reference on how to determine your frame size:

  • For small or narrow faces: Less than 129mm

  • For medium-sized faces: 130-139mm

  • For wide square or round faces: Over 139mm

Now that you have our step-by-step guide on how to calculate sunglasses size, get set for your sunglasses shopping spree!

Shop Sunglasses at the Eye Lab

Sunglasses do not have a standard size because human faces and choices do not have a standard size either! We, at The Eye Lab, have frames that will suit all your comfort and style requirements. What are you waiting for? Check out our range today!

-Vic OD, the Eye Lab Melbourne Optometry Clinic

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