Glasses Size Guide

Choosing the right glasses is essential. However, knowing the right size to choose will help. Here at 2020Glasses we have some great hacks to help you.

  1. If you have your own glasses, you can use a ruler and measure the entire width of the glasses and depth of the glasses and you can compare that to our measurements.  Spectacles do have sizes printed on the frame. These are usually located on the inner arm and read: 55 – 16 – 140. What do these mean? The graphic below illustrates this:


Based on industry standards the table below has a size guide to allow you to decide whether your eyeglasses frame is small, medium, Large, or extra-large. This table uses the eye size as the main indicator.

Glasses Size
(S, M, L, XL)
Eyesize (mm) Approx Width (mm) Visual
Small 40-48 127-130
Medium 49-53 131-135
Large 54-58 136-141
Extra Large Above 58 Above 142

Place your current glasses over the glasses below to get an indication if your glasses are small, medium, large, or extra-large. Please remember this guide will give you an indication only. Glasses depths can vary depending on the style of glasses you have.

Back to Top