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Size Guide - What the Numbers on your Glasses Mean and How to Find your Fit
What are the Numbers on the Temple / Arm?
Have you ever looked at the inside of your glasses and wondered what the three numbers stamped on either temple mean? 47-19-140, for example? They’re size measurements and they are measured in millimeters. Take a look at the illustration below for an explanation:
Finding the Ideal Frame Size from your Existing Frames
To ensure your frames fit perfectly, first determine which size frames are best for you. The best place to start is with the measurements of a pair you already own.
With the help of the illustration above, look for the three little numbers stamped on the inside of the temple. From left to right, these measurements appear in the following order:
1. Lens width (usually between 40 - 62)
2. Bridge width (usually between 14 - 24)
3. Temple length (usually between 120 - 150+)
Sometimes a fourth number will be noted on the temples, which is the lens height. Remember that all of these measurements are in millimeters.
General Size Chart
If you don't have a pair of glasses readily available, the sizes below can be used as a general size chart:
- Lens width: 40 - 46 mm: XS (Junior sizes)
- Lens width: 47 - 48 mm: Adult Small
- Lens width: 49 - 53 mm: Adult Small to Medium Range
- Lens width: 54 mm - 61 mm: Adult Large
- Lens width: 62+ mm: Adult X-Large
Using a Credit Card to Measure your Frame Size
Grab a credit card, stand in front of the mirror or web cam, place one edge of the card at the exact center of your nose and observe the place where the other edge ends. If the card ends at the end of your eye, you should go for standard size (M). If it extends beyond the end of your eye, then your fit is small (S). If the card, on the other hand, does not even reach the end of your eye, your size is large (L).
Finally, if you need help choosing the perfect sunglasses or eyeglasses, please contact us, we'd love to help you choose the best fit and the right style. Don't forget we offer fast & free shipping and easy returns, so shop with confidence.