For Brand Owners, Importers & Distributors

Kids Eyewear Size Guide

A practical reference for reading frame markings and choosing the right fit -- from baby-sized frames to junior and teen sizes, based on our 800+ ready styles library.

Read the Temple Markings

What Does "44 □ 18 - 133" Mean?

Every frame temple carries a printed code that tells you exactly how it's sized. Here's how to decode each number.

Lens Width

The horizontal width of a single lens, measured in millimeters at its widest point.

Bridge Width

The distance between the two lenses, resting across the nose -- marked with the square (□) symbol.

Temple Length

The full length of the arm from the hinge to the tip that rests behind the ear, in millimeters.

Frame Width (the total front width of the frame, hinge to hinge) is not printed on the temple but is a key measurement we provide separately in our spec sheets and size chart below.

Visual Reference

Frame Measurement Diagram

Four key measurements define a comfortable fit for a child's face.

Kids eyewear frame front view, centered Kids eyewear frame side view, centered

These four measurements -- Frame Width, Lens Width, Bridge Width, and Temple Length -- together determine how a frame fits a child's face and head size.

Reference Chart

Kids Eyewear Size Chart

Use this chart alongside your target age group and facial measurements to select the most suitable size from our style library.

How to Read the Measurements

Frame Width
Total horizontal span of the frame front, lens-edge to lens-edge including the bridge.
Lens Width
Horizontal width of a single lens at its widest point.
Bridge Width
Distance between the two lenses, resting across the nose.
Temple Length
Length of the arm from hinge to tip, measured along the side of the head.
Kids eyewear size chart by child stage, recommended age, frame width, lens width, bridge width, and temple length
Size Child Stage Recommended Age Frame Width Lens Width Bridge Temple
XS Baby 0-2 Years 108 mm 41 mm 16 mm 100 mm
S Toddler 2-4 Years 118 mm 44 mm 17 mm 115 mm
M Preschool 4-6 Years 124 mm 46 mm 18 mm 125 mm
L Kids 6-9 Years 130 mm 49 mm 19 mm 130 mm
XL Junior 9-12 Years 136 mm 52 mm 20 mm 135 mm
XS Adult Teen / Small Adult 12+ Years 140 mm 54 mm 20 mm 140 mm

Age recommendations are for reference only. The most suitable frame size should be selected based on the child's head width and facial fit.

Global Compatibility

Does This Chart Work for Asian Children Too?

This size chart follows the reference standard commonly used for Western children's eyewear. Unlike adult faces -- where facial structure differences between Western and Asian adults are more pronounced after full development -- children's head and facial proportions across regions are far more similar during growth stages.

As a result, this chart is generally applicable and reliable for Asian children as well, making it a practical shared reference for brands sourcing globally.

Need a More Precise Fit for Your Market?

If your brand requires stricter regional sizing, custom bridge shapes, or head-width adjustments, our team can develop a tailored fit specification alongside our 800+ ready styles.

Contact Us Visit okayeyewear.com

OKAY EYEWEAR · Taizhou, China · Serving brand owners & distributors in 20+ countries