Sunglasses Size Calculator
Find your perfect sunglasses size with our easy-to-use calculator.
How It Works:
This calculator helps you determine your ideal sunglasses size based on your face measurements, face shape, and style preferences. Properly fitting sunglasses should complement your face shape while providing adequate coverage and comfort.
Measure the width of your face from temple to temple (the widest part).
Measure the width of the bridge of your nose where glasses would sit.
Measure from your temple to the tip of your ear (for arm length).
Your face shape helps determine complementary frame styles.
Different styles have different sizing considerations.
Your typical activities affect the ideal fit and features.
Your Sunglasses Size Results
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Sunglasses Size Guide & Measuring Tips
Understanding Sunglasses Measurements
Sunglasses frames typically have three key measurements marked like: 52□18-145
Lens Width (52)
The horizontal width of each lens in millimeters. This is the first number you'll see on most frames.
Bridge Width (18)
The distance between the lenses (over the nose) in millimeters. This is the second number.
Temple Length (145)
The length of the arms/temples in millimeters. This is the third number.
Frame Width
The total width of the entire frame from temple to temple. This is approximately: Lens Width × 2 + Bridge Width.
How to Measure for Sunglasses
Face Width Measurement
- Stand in front of a mirror.
- Use a flexible measuring tape or ruler.
- Measure the width of your face from temple to temple (the widest part).
- Record the measurement in millimeters or inches.
Bridge Width Measurement
- Look straight ahead in a mirror.
- Measure the width of the bridge of your nose where glasses would sit.
- For most people, this ranges from 14-24mm.
Temple-to-Ear Measurement
- Measure from your temple (side of your eye) to the point where your ear connects to your head.
- This helps determine the ideal temple arm length.
- Standard temple lengths are typically 135mm, 140mm, 145mm, or 150mm.
Standard Sunglasses Size Chart
| Size Category | Lens Width (mm) | Bridge Width (mm) | Temple Length (mm) | Typical Face Width |
|---|---|---|---|---|
| Extra Small | 42-48 | 14-18 | 125-135 | Narrow (115-125mm) |
| Small | 46-52 | 16-20 | 130-140 | Narrow to Medium (125-135mm) |
| Medium | 50-56 | 18-22 | 135-145 | Medium (135-145mm) |
| Large | 54-60 | 20-24 | 140-150 | Medium to Wide (145-155mm) |
| Extra Large | 58-64 | 22-26 | 145-155 | Wide (155mm+) |
Face Shapes and Recommended Frame Styles
Oval Face
Balanced proportions with a slightly wider forehead than jawline.
Best Styles: Most styles work well, including aviator, wayfarers, and round frames.
Round Face
Soft curves with similar width and length.
Best Styles: Angular frames like wayfarers, rectangular, and square styles add definition.
Square Face
Strong jaw and forehead with similar width and length.
Best Styles: Round or oval frames, aviators, and cat-eye styles soften angles.
Heart/Triangle Face
Wider forehead tapering to a narrower chin.
Best Styles: Frames wider at the bottom like aviators, cat-eye, or round frames.
Diamond Face
Narrow forehead and jawline with wider cheekbones.
Best Styles: Oval frames, rimless styles, and cat-eye shapes.
Triangle/Pear Face
Narrow forehead with wider jawline.
Best Styles: Frames that add width to the top of the face like cat-eye, browline, and decorative top-heavy frames.
Signs of Well-Fitting Sunglasses
Frame Width
The frames should be slightly wider than your face, but not protruding significantly beyond your temples.
Bridge Fit
The bridge should rest comfortably on your nose without pinching or sliding down.
Temple Comfort
The temples should extend straight back to your ears without pressing too tightly against your head.
Eye Position
Your eyes should be centered in the lenses, with the frames sitting level on your face.
Weight Distribution
The weight should be evenly distributed between your ears and nose, without leaving pressure marks.
Cheek Clearance
The frames shouldn't touch your cheeks when you smile or talk.