Your Complete Guide to Glasses Measurements & Frame Sizes

Your Complete Guide to Glasses Measurements & Frame Sizes

Discover the Perfect Prescription Sunglasses at Lenses Direct Reading Your Complete Guide to Glasses Measurements & Frame Sizes 2 minutes

Ensuring your eyewear fits perfectly is paramount when shopping online. Discovering the right frame size might seem daunting, but it's remarkably straightforward. We've crafted a comprehensive guide to streamline the process for you. Here's everything you need to know about eyeglasses and sunglasses frame measurements.

Understanding Your Frame Sizes

To guarantee optimal fit, start by identifying which frame size suits you best. Begin by examining the eyeglass measurements on a pair you currently own.

Look for three small numbers engraved on the inside of the temple (also known as the "arm") of your glasses. These three digits represent the frame's measurements.

From left to right, these eyeglass measurements typically appear in the following sequence:

  1. Lens width

  2. Bridge width

  3. Temple length

Occasionally, a fourth number may be indicated on the arms, denoting your lens height. It's important to note that all measurements are in millimeters.

Lens Width

This refers to the horizontal width of each lens at its widest point, ranging from 40mm to 60mm.

Bridge Width

The bridge width is the distance between your two lenses, determining how snugly your frames rest against your nose. This dimension usually ranges from 14mm to 24mm.

Temple Length

Measured from each screw to its temple tip, including the bend that rests on your ear, the temple length typically falls between 120mm to 150mm.

Lens Height

The lens height indicates the vertical measurement of your eyeglass lenses at their widest point within the frame. It's particularly crucial when assessing bifocals or progressive lenses.