Frame Measurement Guide

Frame Size


Standard Frame Size Coding

The sizes you can see with each of the frames on this website are of the same format. They are all given in millimetres, and the numbers are separated by a /. For example 46/20/135.

  • The first number is the lens diameter.

  • The second is the bridge width.

  • The third will be the arm length.

Frame dimension details.

Additional Useful Frame Dimensions

In addition to the standard measurements coded onto frames, we have also shown the overall width (from outside hinge to outside hinge) and the overall height of the frames (at their highest point). These sizes are particularly useful when you are using our Virtual Mirror

Frame dimensions image

What Frame Size is Right for You ?

The easiest way to select a suitable frame size is to get the dimensions from a comfortable pair of glasses that you already have.

Most commonly you find 3 measurements on one of the arms (perhaps with the help of a magnifying glass), the first two measurements usually being separated by a rectangle – but not always.

On one of the sides or on the bridge you will usually find 3 x measurements - the first 2 measurements are usually separated by a rectangle.

Frame dimension details.

Frame dimension details.

The Lens Diameter is a matter of choice, but the bridge width and arm length will determine the fit.

They do not need to be exact, but the closer they are to your existing comfortable pair, the more likely your new glasses are to be a comfortable fit.

These sizes can sometimes also be located either :

1) On the inside of the bridge

Frame dimension details.

In this case the last dimension (arm length) appears to be missing but it is infact shown separately on the leg (the arm length will generally be either 130, 135, or 140

Frame dimension details.


OR

2) Under the bridge on the nose rests.



Will a frame suit me?

The most important part of the frame that determines whether the frame will suit you is the shape of the eye pieces.

After the eye piece shape, the overall width of the frame is the most reliable indication of whether the glasses will suit your face. The overall width of the frame is shown for each pair of frames on the website.

Use our Virtual Mirror or Try At Home service to help find a pair of glasses or sunglasses that will suit you.



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