Frame Sizing Guide

What is My Frame Size?

The secret to ordering a perfectly fitting pair of eyeglasses online is simple: know your frame size. The eyeglasses and sunglasses frame size uses the same three key measurements:

• Eye Size: the width of the frame around the lens
• Bridge Width: the width of the frame across your nose
• Temple Length: the length of the arm of the glasses from the front of the frame to behind your ear

How to Measure Your Glasses Frame Size

The two most common ways to measure your frame size are to find the size of your current, well-fitting glasses, or to use a soft measuring tape, with millimeter measurements, to find your measurements.

Sunglasses tend to be larger than eyeglasses, so your sunglasses size will most likely be different than your eyeglasses size, even though they both use the same measurements. With sunglasses, you have more freedom to choose within a wider range of sizes, since the fit does not need to be as precise. Generally, glasses will still fit within 2-3 millimeters of a “perfect fit.” So while the perfect fit is ideal, if your ideal frame is only available in a size that’s within that 2-3 millimeter range, you may still be able to wear them comfortably.

Find Your Size On Your Current Frames

Every pair of glasses is a little different, so the size information may not always be located in the same place.
Look on the inside of your current frames. You will find the size information stamped either on the temple, like this example:

Or on the bridge, like on this metal example:

or like on this plastic nose bridge:

On some models, you may also find the size stamped on the earpiece.

What to Look for When Determining Your Glasses Measurements

There can be quite a few different kinds of numbers and markings inside your frame, and not all of them are relevant to the size.

The eye size and bridge size are often located next to one another, sometimes separated by a square box icon. The temple size may immediately follow those two sets of numbers, or have some other info in between.

You are looking for (2) two-digit numbers and one three-digit number. Here's how to identify them:

Eye Size: a two-digit number in the 40 - 62 range

Bridge Size: a two-digit number in the 14 - 24 range

Temple size: a three-digit number in the 120 - 150 range

The eye size is the most important number to pay attention to. Depending on the style of frames you choose, you can go up or down by one and still find a decent fit.

What you can ignore:

A set of capital letters and numbers grouped together is generally the model number or the frame color/style number(s). In the image above, "VPR 020" is the frame model number while "EAJ-101" is the color/style number.

Still confused? We can help.

Also see: Reading Glasses | How to Measure Pupillary Distance or PD | Lens Color Guide | Understanding Your Prescription