Pupillary Distance Calculator
Pupillary Distance
Estimate pupillary distance from frame measurements and fit.
Formula
Total PD = Right Eye PD + Left Eye PD
Frequently Asked Questions
What is pupillary distance used for?
PD is used to align the optical center of lenses with your pupils for clear vision.
What is the average adult PD?
The average adult PD ranges from 57 to 65 mm, with 63 mm being common.
Can I measure my own PD?
Yes, you can use a ruler and mirror or a smartphone app to measure your PD at home.
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