Getting the Right Size Frame

It’s a blessing when a retailer offers multiple frame sizes. All the frames at BestBuyEyeGlasses (pop-up link) are available in multiple sizes. But which size is right for you? I found this at

Right Size Glasses Online

Knowing your glasses size is especially important when you buy glasses online. If you haven’t had a chance to try on the frames in a store, you want to make sure the glasses will fit for comfort and looks. When I try on glasses in the store, I always look at the measurement information that is printed on the inside of one of the temples or on the bridge. You don’t have to try on too many glasses before you begin to know your size.

The size information is a set of three numbers that are measurements in millimeters. For example, I recently bought frames that are size 54-19-140. The first number (54) is the horizontal width of one lens. The second number (19) is the distance between lenses, and the third number (140) is the length of one of the temples. I am a larger person and this is the bigger size in this style. The smaller frame is 52-17-140.

At OpticsPlanet, we provide this size information on each page that describes our Sunglasses, Prescription Sunglasses and Eyeglasses.

The first thing I consider when choosing the right size is to make sure the glasses are at least as wide as my face. Otherwise, the glasses will look and feel too small. The width of glasses includes the horizontal width of one lens times two (one for each lens) PLUS the distance between the lenses PLUS the distance the temples stick out which can be a few millimeters. It is helpful if you know the width of your face, otherwise, after you try on a few pairs, you’ll know the minimum horizontal lens width you need. I don’t use the value for the distance between lenses as a guide for fitting over my nose. The number can be misleading especially if the shape of the lenses bring them close together at the bridge. I use the number to get a sense of the overall width of the frames. Sometimes, there isn’t a lot of choice in the length of the temples. A number like 140 is common. However, for myself, I have found that a temple that is longer than 140 is more comfortable and provides greater stability. A temple that is too short may not have enough length for proper final fitting and adjustment. Also, a temple that is the proper length looks better by going straight back across your head and not angled up. The temple length number can be misleading.

A frame that wraps may have a temple length that appears to be short, but you need to take the wrap into consideration which pushes the temples back over your ears. When you know the size that fits you best, you can confidently by glasses online and take advantage of great savings on the best brands. See our Sunglasses Guide and our Rx Prescription Guide for more information about choosing glasses that fit well. At OpticsPlanet, we have a flexible Return Policy and many of our customers order several pairs of glasses at a time with the idea to keep what they like and return the others for a full refund. This is a good way to try glasses you buy online. We have a lot of experience helping customers with special size needs such as smaller or larger frames. I will talk about our recommendations for those situations in a future blog. In the mean time, people with smaller faces should consider child size frames such as the Ray-Ban Junior. The junior Raybans are way cool smaller versions of the classics. For larger faces, see the Ray Ban Highstreet, the S-flex models by Serengeti and the Bolle Spiral.

I’m not familiar with the site he mentions in this article and don’t take any responsibility for their product. The site in the banner below, however, I can vouch for: 


2 thoughts on “Getting the Right Size Frame”

  1. Bridget,

    I am very sorry to hear that you ordered glasses that did not fit. Unfortunately, the explanation provided by the company is correct. However, you shouldn’t focus to much on the details. You are being provided poor customer service–this is unacceptable in the online eyewear industry.

    Regarding the sizing issues, different eyeglass frames have different endpiece lengths (the endpiece is the “stub” that connects the frame to the temple). Therefore, to achieve a 140mm temple, it may be a 5mm endpiece and a 135mm temple, or a 10mm endpiece and a 130mm temple. It sounds to me like you have a 5mm endpiece and a 135mm temple. To get your total temple measurement, find a pair of well-fitting glasses and measure from the bend of the frame to the end of the temple, including the curve.

    However, ANY company that sells eyeglasses online MUST offer satisfactory returns if you are not satisfied. Sizing glasses can be tricky, and the good companies realize they will be getting returns from time to time.

    I am dismayed to hear of the poor customer service you are receiving. Please privately email the company name you are dealing with and your order number or items ordered. I will contact them personally and try to get results. If they do not provide a satisfactory resolution, I will list them as a company of which my readers should be cautious.

  2. Hi,
    I am beside myself. I ordered a pair of prescription glasses online, from a place not mentioned above. The listing of the glasses I liked had a temple measurement of 140, so I figured they would fit. I received the glasses and right away noticed that the temple was stamped 135. I emailed back to let them know that they had sent the wrong size. Here is their response:

    “Temple arm length is the distance from the front of the frame, to the tip of the temple, on a straight line, viewed from the side. It’s an angle, and not a measure of the actual length of the temple itself.

    135mm and 140mm are the mesurements with different methods and 140mm on the website is the correct dimension. You may measure it by yourself. ”

    I wondered what you think about their explanation.

Leave a Reply

Your email address will not be published.

Please type the characters of this captcha image in the input box

Type the letters shown. This stops spam