Prescription Glasses Size Chart
Note: Frame sizes can vary slightly depending on the manufacturer. Always try the frames on before purchasing when possible.
Prescription Glasses Size Chart to help you understand the common measurements and frame sizes for prescription glasses. The following details will help you find the correct frame size that fits your face shape and personal preferences.
Prescription Glasses Size Chart
| Frame Size | Lens Width (mm) | Bridge Width (mm) | Temple Length (mm) | Frame Width (mm) | Recommended Face Width | Typical Users |
|---|---|---|---|---|---|---|
| Extra Small | 40 – 44 | 16 – 18 | 120 – 130 | 125 – 130 | Narrow face | Children, petite faces |
| Small | 45 – 47 | 18 – 20 | 130 – 135 | 130 – 135 | Small to medium face | Small women, younger adults |
| Medium | 48 – 50 | 20 – 22 | 135 – 140 | 135 – 140 | Average face width | Most adults |
| Large | 51 – 53 | 22 – 24 | 140 – 145 | 140 – 145 | Medium to large face | Larger men and women |
| Extra Large | 54+ | 24+ | 145+ | 145+ | Broad face | Men with larger faces or wide heads |
Prescription Glasses the Measurements:
- Lens Width (mm):
- The horizontal width of one lens from edge to edge, typically measured in millimeters (mm).
- A common size range for most people is between 48-50mm, but smaller or larger sizes may be needed based on face structure.
- Bridge Width (mm):
- The distance between the two lenses (the area that sits on the nose).
- This width can vary, with typical sizes ranging from 18mm to 24mm.
- Temple Length (mm):
- The length of the arms (temples) that go behind your ears.
- Most temple lengths fall between 130mm to 145mm, but larger or smaller lengths are available.
- Frame Width (mm):
- The total width of the front of the frame, which can be calculated by adding the lens width and the bridge width. This measurement is also important for overall fit.
- Recommended Face Width:
- A general guideline for selecting the correct frame size based on the width of your face.
How to Measure Your Prescription Glasses Size:
- Lens Width: Measure the horizontal width of one of your existing glasses’ lenses, or choose a size that matches the style you want.
- Bridge Width: Measure the distance between the lenses (if you don’t already have a frame that fits you well, this can be tricky, but optical shops can help with this).
- Temple Length: Measure the length from the hinge to the tip of the temple arm, or look at your current glasses for this information.
- Frame Width: The total width of the glasses across the front. This should match the width of your face to avoid frames that are too tight or loose.