Eyewear Size Guide | Find Your Perfect Glasses & Sunglasses Fit | Eyedell
Eyewear Size Guide
Find Your Perfect Fit with Eyedell
Choosing the right eyewear is about more than style—it’s about comfort, vision, and confidence. At Eyedell, we’ve created this comprehensive Eyewear Size Guide to help you understand frame measurements, determine your ideal size, and shop with confidence.
Whether you’re purchasing prescription glasses, computer glasses, blue light glasses, or sunglasses, knowing your frame size ensures the best fit and all-day comfort.
Understanding Eyewear Measurements
Every pair of glasses has three important measurements printed on the inside of the temple arm.
Example:
52 □ 18 – 140
Measurement Description
52 mm Lens Width
18 mm Bridge Width
140 mm Temple Length
These measurements are expressed in millimeters (mm).
Standard Eyewear Size Chart
| Frame Size | Lens Width | Bridge Width | Temple Length |
|---|---|---|---|
| Small | 46–49 mm | 16–19 mm | 135–140 mm |
| Medium | 50–53 mm | 17–20 mm | 140–145 mm |
| Large | 54–57 mm | 18–21 mm | 145–150 mm |
| Extra Large | 58 mm+ | 18–22 mm | 145–155 mm |
Eyewear Face Width Guide
| Face Width | Recommended Lens Width |
|---|---|
| Narrow Face | 46–49 mm |
| Average Face | 50–53 mm |
| Wide Face | 54–57 mm |
| Extra Wide Face | 58 mm and above |
How to Find Your Current Frame Size
The easiest way to find your ideal size is by checking your existing glasses.
Look inside one of the temples (arms), where you’ll typically find numbers like:
50-18-140
These represent:
- Lens Width = 50 mm
- Bridge Width = 18 mm
- Temple Length = 140 mm
If your current glasses fit well, choose a new frame with similar measurements.
How to Measure Your Face for Glasses
If you don’t already own glasses, follow these steps:
Step 1 – Measure Face Width
Use a ruler to measure the distance between your temples.
Step 2 – Measure Bridge Width
Measure across the bridge of your nose.
Step 3 – Choose the Right Frame
Compare your measurements with our size chart to find the best fit.
Sunglasses Fit Guide
A well-fitting pair of sunglasses should:
✔ Sit comfortably on your nose
✔ Not slide down while walking
✔ Not pinch your temples
✔ Cover your eyes completely
✔ Stay secure when bending forward
Glasses Fit Checklist
Your glasses fit correctly if:
- The frame sits level on your face.
- Your eyes are centered in each lens.
- The temples rest comfortably behind your ears.
- The bridge sits securely without pressure.
- The frame doesn’t touch your cheeks when you smile.
- The glasses stay in place during daily activities.
Common Frame Sizes
| Size | Lens Width | Suitable For |
|---|---|---|
| XS | 44–46 mm | Kids & Very Narrow Faces |
| S | 47–49 mm | Narrow Faces |
| M | 50–53 mm | Most Adults |
| L | 54–57 mm | Wide Faces |
| XL | 58–62 mm | Extra Wide Faces |
Tips for Choosing the Right Eyewear
- Choose frames that match your face width.
- Lightweight materials provide better all-day comfort.
- Consider adjustable nose pads for a customized fit.
- Ensure your pupils are centered within the lenses.
- If you’re unsure, select a size close to your current eyewear measurements.
Why Frame Size Matters
The correct frame size offers several benefits:
- Better visual alignment
- Improved comfort
- Reduced pressure on the nose and ears
- Enhanced appearance
- Greater stability throughout the day
- Better prescription lens performance
Frequently Asked Questions
How do I know my glasses size?
Check the inside of the temple arm for three numbers such as 52-18-140. These indicate the lens width, bridge width, and temple length.
Are sunglasses sized differently from glasses?
No. Both sunglasses and prescription glasses use the same standard sizing system.
What if I’m between two sizes?
If you prefer a snug fit, choose the smaller size. For a more relaxed or oversized look, choose the larger size.
Can I use my current glasses size when buying new frames?
Yes. If your current glasses fit comfortably, selecting a frame with similar measurements is usually the best choice.
What is the most common glasses size?
For most adults, a lens width of 50–53 mm, bridge width of 17–19 mm, and temple length of 140–145 mm provides a comfortable fit.
Shop the Perfect Fit at Eyedell
At Eyedell, we offer a wide selection of stylish prescription glasses, blue light glasses, computer eyewear, and premium sunglasses in multiple sizes to suit every face shape and preference. With detailed product measurements and this easy-to-follow size guide, finding your perfect pair has never been easier.
Browse our collection today and discover eyewear designed for comfort, clarity, and style.
