How to Measure Sunglasses Size - Featured Image

How to Measure Sunglasses Size + 4 FAQs Answered

Posted on |

Do you have a pair of sunglasses you love, but that doesn’t fit quite right? You’re not alone. A lot of people struggle with finding the right size sunglasses. In this post, we’re going to show you how to measure sunglasses’ size so you can find a pair that fits perfectly. 

Stay stylish and protect your eyes!

How Should Glasses Fit My Face?

1. What Size Glasses Do I Need?

You can easily find your glasses’ measurements by following three simple steps. Here’s how to measure your features for glasses frames.

Measure Your Nose and Glasses Bridge Width

Take a side-profile selfie to see where your nose bridge begins and how wide or narrow your nose is.

Your bridge glasses sizing number is between 16 and 18 if it’s level with or below your pupils. If it’s wider and above your pupils, the bridge measurement is higher, between 19 and 21. 

Find the Width of Lenses

Measure the distance between your left and right temples using a ruler positioned barely below your eyes. That’s how you’ll measure the total width of your glasses.

Frames are divided into two individual lens widths. To get their measurements, you should subtract the bridge width from the one between the temples, and divide the number you get by half.

Now you know what the perfect size for your lens width is.

Find the Length of the Glasses Arm

Use the temple measurement to find the ideal arm length for your glasses.

A glasses arm length between 135mm and 140mm is best for those with a temple width of 129mm or less. If you have a wider temple, between 130mm and 139mm, opt for a longer arm length, from 140mm to 145mm. For temples wider than 139mm, an arm length of 150mm or more is best.

2. What Size Sunglasses Do I Need?

The principle of taking sunglasses measurements is the same as with regular eyeglasses. Follow the steps above to find the right size for your face.

That said, sunglasses are different from eyeglasses in one aspect. There are more styles, shapes, and types of sunglasses to choose from, so it can be trickier to find the perfect size and style. 

For instance, you can pick from different lens widths, bridge sizes, and temple lengths. But the most important thing is the overall fit. The right pair of sunglasses should:

  • Sit evenly on your nose
  • Rest comfortably on your ears without slipping
  • Not squeeze your temples 

You can do a few things if your sunglasses size doesn’t fit quite right. 

If the glasses are too big, you can try to adjust them with DIY hacks. For instance, you can use nose pads or ear grips. 

If they’re too loose, try tightening the screws. Be careful not to over-tighten them, as that can cause damage to the frame. 

You can also take them to a professional to have them adjusted. This is the best option if you want to ensure that your sunglasses will fit perfectly.

This accessory is a great way to protect your eyes from the sun, and it can also help you look great. But it’s crucial to find a pair of sunglasses that suits you and fits well.

How to Measure Sunglasses Size - Woman holding glasses

3. How Wide Should Glasses Be?

It’s very important to find glasses with the perfect width for your face. Too wide or narrow ones could disrupt your sight and do more harm than good.

The temple length of the glasses and your face should be similar. The width of the frame should not exceed the width of your face at the temples. The top of the frame should not be higher than the line of your brows. Make sure the bottom of the frame doesn’t rest on your cheeks, or the glasses will irritate your skin.

4. What Do Numbers on Glasses Mean?

The numbers on the sides of the arm show the glasses’ frame size measurements in millimetres. All glasses and sunglasses brands put three figures on every frame to denote a specific feature. 

The first number is the width of the lenses, which can be from 50mm to 55mm.

The second number shows the distance between the lenses or bridge width, and it can be between 15mm and 21mm.

The third number shows the length of the temple arm with the portion going behind the ear, and this figure varies between 135mm and 150mm.

All glasses brands, including the most popular ones such as Ray-Ban, always put these figures in the same order. So, you can compare the measurements of the new frame with the glasses you took off your face to find a pair that will fit you perfectly.

Final Thoughts

Now that you know how to measure sunglasses size, what are you waiting for? Get shopping! And when you do, be sure to keep the tips we shared in mind. 

A good pair of sunglasses can make all the difference on a sunny day, and with our help, you’re sure to find the perfect pair for your face shape and style.