Glasses Size Guide

So you’ve decided to up your eyewear game with a new pair of glasses or sunglasses. It may have taken a long time to get to this moment. You’ve done your research, you’ve looked at glasses styles and narrowed it down to a certain ones. You’ve perused the blogs, scoured the Gram, you may even have a Pinterest board, but now you’re finally ready, now is the time to take the plunge and fork out for some fresh new frames.
But wait, what’s this? You have to choose a size as well? If only there were a simple size guide to help you decide…
Here at Mesimero, we know how important it is to get the perfect pair, and choosing the right size is a big part of that. So we’ve put together this simple guide to make the final stage of your eyewear buying journey a piece of cake.
WHAT DO THOSE SIZING NUMBERS MEAN — 46/22/145 OR 49/18/150?
Unlike shoe or waist size, you won’t always fit the same size in eyewear. That has a lot to do with how the frame is built.
Take a good look at a pair of glasses, is the frame built with big temple lugs that stick out at the side? If so, it’ll fit wide. Or, is the acetate fine? If so, that’ll cause the frame to fit narrower.
If you’ve got some glasses to hand have a nosey on the inside of the temple (arm). You’ll probably see something that looks a bit like this – 53[]20 – these simply refer to the width or length of various parts of the frame in millimetes.
- A- The first number refers to the width (or lens diameter)
- B- The second number is the width of the nose bridge.
- C- The third number this will be the length of the temple.
- D- The frame width usually = (A x 2) + B + 20
For example: Our Santo is 47-27-145 => The frame width will be: 47×2 + 27 +20 = 141
It’s worth noting that an average “medium” sized frame will have a lens width range of anywhere from 46-49mm. A frame that has a lens width of under 45mm will typically fit on the petite side and a lens width of over 50 will provide an oversized or larger frame fit. But ultimately it is how the style and feel of the eyewear work for you. Just because you have a petite head doesn’t mean you should avoid going for something oversized.