Frame Sizing Guide - Lumio Eyewear

Free Shipping in Continental US

What is your Frame Size?

Find out which pair of Lumios look best

We want you to be confident that your glasses will fit you well when you receive them. We’re here to pull back he curtain and give you some insight on measurements and fit. We’ve created the following guide so you can find the right size. Here are a few tips to help you sort it out.

Once you have learned everything that you need to know in this guide, you’ll be able to confidently buy glasses.

The best tip to ordering a perfectly fitting pair of eyeglasses is to know your frame size. It’s easy to find your frame size on your current pair of frames. If you already wear glasses, there are likely some measurements already indicated on the arms or temples i.e. 52-14-140. The first number is the lens width, the second is the bridge (or nose width), and the third is the temple or (arm length).

Generally, glasses fit according to the following parameters:

  • 1. Lens Width
  • 2. Bridge Width
  • 3. Arm Length

Understanding the numbers

You can locate the following measurements—lens width, bridge width, and temple length—on each frame’s temple or arm. Please note everything is listed in millimeters.

Lens width

THE FIRST NUMBER (45) is the width of the lenses. The lens width is a measurement to give you a sense of how large the frames will be. This will help you pick a frame that isn't too wide or too narrow for your face. You'll want your eyes to align with the center of the frame. A frame in the 40’s is small and above 55 is large.

Bridge width

THE SECOND NUMBER (21) is the bridge or nose width and is the distance between the two lenses. Select a style where the bridge of the frame contours to the shape of your bridge. Individuals with closely knitted eyes should choose a frame with low bridge width (17 and below). Likewise, for more widened set of eyes, the width should remain with a higher bridge width (18 and above).

Temple length

THE Third NUMBER (140) is the temple length and measures the length of the frame. The temples (also known as “arms”) of the frame should be long enough so they can be bent downward at an angle at a point just beyond the top of your ears. Temple length is measured in millimeters (mm) and most frames have temples that range in length from 120 to 150 mm.

  • Sign up
Lost your password? Please enter your username or email address. You will receive a link to create a new password via email.
We do not share your personal details with anyone.