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How to measure pupillary distance

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Our PD Measurement tool does not work in Internet Explorer version 9 and below. Please consider upgrading or using another browser to access this page. Alternatively, you can use our manual method to measure your PD using the linked file below.

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How to use our PD measurement tool.

Step 1

Grab a regular card with a magnetic stripe on the back. Student IDs, credit cards and gift cards work well as measurement tools.

Step 2

Place the card under your nose and try to keep its distance from the camera the same as your eyes. Snap the picture and drop it on the marked area.

Step 3

Mark your left and right eyes by dragging the individual eye markers + centered over each eye. Then mark the left and right sides of the magnetic stripe by dragging the "L" and "R" vertical lines. Your PD will be shown at the top right!

Prefer to measure yourself?

We also offer a printable PD ruler for your use. Just follow the instructions and you're good to go!

Download PD Ruler