Guide to measuring glasses

Finding the right frame size is essential when buying glasses online. In this brief guide, we will explain everything you need to know to easily choose your next pair of prescription or sunglasses.

How to read the size

If you own a pair of glasses you will be able to see a series of numbers engraved on the inside of the temples, the measurements are given in millimetres.

The size measurements of glasses are primarily expressed with a series of numbers written inside the temple of the glasses:

  1. Size - 49□ 20 145
    Measurement of the horizontal diameter of the lens at the point of maximum width (corresponds to the size of the glasses).
  2. Bridge - 49□ 20 145
    The part of the frame that rests on the nose and connects the lenses (corresponds to the distance between the lenses).
  3. Height
    Measurement of the vertical diameter of the lens at the widest point inside the frame. The lens height is particularly important when measuring bifocal or progressive lenses.
  4. Temple - 49□ 20 145
    The length of the temple is measured in full, from the end to the connection with the front of the glasses.

On our website, you can find the sizes of the glasses in the product sheet, just below the name of the product you are viewing:

How to find your size

Find your glasses size using a credit card

  1. Stand in front of a mirror.
  2. Place the long side of the card halfway up your nose, the short side should be placed under the bottom of your eye.
  3. Where does the edge of the credit card reach in relation to your eye?

SMALL

If the card exceeds the end of the eye it means that your size is SMALL

MEDIUM

If the card coincides with the end of the eye it means that your size is MEDIUM

LARGE

If the card does not exceed the end of the eye it means that your size is LARGE
Sizes Fit
47 - 48 - 49 - 50 mm SMALL
51 - 52 - 53 - 54 mm MEDIUM
55 - 56 - 57 - 58 mm LARGE