Ray-Ban Frame Size & Fit Guide

Your complete guide to getting the right Ray-Ban size — width, lens, bridge, temple and all the cryptic numbers in between.

The 5 Measurements That Actually Matter

Ray-Ban sizing looks like algebra — but once you decode it, it’s surprisingly simple.

On the inside of your frames (usually the left temple), you’ll see a sequence like this:
RB2132 901 52[]18 145

Here’s what it means:

52 = Lens Width (in millimetres)
18 = Bridge Width (space between lenses)
145 = Temple Length (arms)
The overall frame width is a combination of all these.

Most Ray-Bans come in at least two sizes. Some come in three (small, standard, large). And some — like Aviators — run famously large.

If you only remember one thing: lens width ≠ frame width.

Lens Width: The Real Size Decoder

This is the number most people confuse with “frame size” — but it’s only one piece of the puzzle.

Lens Width is the measurement (in mm) of one lens across its widest point.

Wayfarers usually come in 50, 52, and 54mm
Aviators run from 55 to 62mm
Round styles hover around 47–53mm

Too small? You’ll look like you stole your little cousin’s shades.
Too big? You risk the dreaded cheek-touch or eyebrow hover.

Find your sweet spot and stick with it across frames.

Bridge Width: The Make-Or-Break Number

If you’ve ever had sunglasses that slide down your nose or pinch your sinuses — this is why.

Bridge Width is the distance between the lenses. It determines how the frame sits on your nose.

14–18mm is common
<14mm = narrow fit
18mm = wide/low fit

Low bridge or wide nose? Look for models with 18–21mm bridges or try Ray-Ban’s “Low Bridge Fit” editions (marked with an F, like RB2140F).

Temple Length: Comfort in the Long Run

You’ll usually see 135, 140, or 145mm. This is the length of the arms, from hinge to tip.

Too short? They’ll pull back on your ears.
Too long? They’ll feel loose and slide off when you look down.

Stick with what feels balanced — and if you’re always adjusting, it might be time to size up (or down).

Face Shape vs. Frame Shape

The golden rule: contrast is key.

Round faces → go angular: Wayfarers, Clubmasters
Square faces → soften it up: Round Metal, Hexagonal
Oval faces → you lucky thing, wear anything
Heart-shaped → bottom-heavy frames like Erika or Oval

Ray-Ban doesn't market frames by face shape — but we do.

Small Faces, Big Frames: Sizing Up Without Drowning

Want the oversized look but not the fly-swatter effect?

Tips for styling bigger frames:

Look for lighter materials (like nylon or metal)
Choose styles that hug the brow line
Stick with flatter lenses — avoid curves that amplify width
Try 50–52mm first, then experiment upward
Asian Fit (F) models can help smaller faces centre the lens

You can rock big frames — but they still need to fit.

What If I Have a Big Head?

We hear it all the time. And no, you're not cursed.

For wider faces or heads, try:

55mm+ lens width
19mm+ bridge
145–150mm temple arms

Best Ray-Bans for wide fits:

RB2132 New Wayfarer (55mm)
RB4165 Justin (55 or 58mm)
RB4171 Erika (54mm)
RB3025 Aviator (58 or 62mm)
RB4340 Wayfarer Ease (54mm)

Avoid frames with deep wraparounds or sharp curves.

Kids, Teens & Petite Faces

Not everyone needs 50mm+. Ray-Ban makes dedicated smaller fits too:

RJ/RJx = Junior models
RB models in 47–49mm for petite adults
RB3447 Round Metal (47mm)
RB2180 (49mm)
RB2185 Wayfarer II (49mm)

Fit tip: you can always adjust nose pads or temple bends slightly with a pro optician — but starting small saves hassle.

Size Codes by Model: The Cheatsheet

RB2140 Original Wayfarer – 50, 54
RB2132 New Wayfarer – 52, 55
RB3025 Aviator – 55, 58, 62
RB3016 Clubmaster – 49, 51
RB3447 Round Metal – 47, 50, 53
RB4171 Erika – 54
RB2180 – 49, 51

You’ll find the most common size listed first — but you can usually find the others if you dig.

TL;DR — What Size Ray-Bans Should You Get?

Start with what you already wear. Measure the lens width and bridge. Then:

Narrow/small face: 47–50mm
Medium: 51–54mm
Large head/wide face: 55mm+
Low nose bridge: Look for “F” models
Children/teens: RJ or smaller RB models

Sizing isn’t just a number — it’s about balance, comfort, and feeling like your frames were made for your face.

Find Your Fit. Own Your Look.

No more guessing. This guide gives you the tools to pick the right Ray-Ban size every time — whether you’re shopping in-store or online.