Finding Your Perfect Frame

A Guide To Frame Measurements

Finding the right frame size is important when buying glasses online. Learn more about frame measurements and how to measure your old frame below.

Understanding Frame Measurements

You can usually find the most important measurements on the inside arm of your glasses. These will look something like:

From left to right, the numbers tell you the:

Lens Width / Lens Diameter: This is measured across the lens from the bridge at its widest point.

Bridge Width: This is the distance between your two lenses. Essentially the length of the frame that sits directly above your nose.

Arm Length / Temple Length: This is the length of the arm from the hinge to the tip, including the bet part that sits on your ear.

There are also two other measurements that can be useful to know but aren't usually on the frame:

Frame Width: Measure the total width of the full-frame to give you an overall better picture of how these frames compare to your current glasses.

Lens Height / Depth: Measurement from the top to the bottom of the lens. All frames can be fitted with single-vision lenses. However, if you require a bifocal or varifocal lens, then this measurement becomes important, as these lenses will require a minimum lens height of 28mm.

Choosing Your New Frames

If you already own a pair of glasses that you are happy with, the process of choosing the right frame for you is very simple. By checking the frame sizes from your own pair against the sizes indicated on our site, you will be able to find a pair of glasses that fit comfortably, no matter their style!

We show the dimensions on all our frames (example below). Simply measure a frame you have at home and if your frame is within 5mm of the size of the frame on our site, you can safely say it will fit.

How Do I Measure My Frames? - Video

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