How can I find my IPD?

There are several ways to estimate your IPD.

The most accurate way to determine your IPD is to consult a professional optometrist or eye doctor. You can also estimate your IPD by doing any of the following:

Use a ruler and a mirror. See below for detailed instructions.
Through experimentation. See below for detailed instructions.
Using third-party apps or websites.

Note: Third-party apps or websites may collect personal data. HTC can neither guarantee the accuracy of IPD measured through third-party apps or websites nor ensure the security of your personal data.

Estimating your IPD in a mirror

You can estimate your IPD with a millimeter ruler and a mirror.

Stand directly in front of a mirror, and then hold the ruler up to your eyes. Make sure that the ruler is level. If you're using a flexible ruler, make sure not to bend it.
Align the zero mark with the center of your pupil. You may need to close your other eye to get a clear reading.
Check the millimeter mark on the other eye. You may need to close the first eye to get a clear reading.
Make a note of your IPD measurement. You may want to recheck several times to make sure your reading is accurate.

Tip: You can also ask a friend to help you measure your IPD instead of doing it by yourself with a mirror. Make sure you're looking straight ahead while they measure.

Estimating your IPD through experimentation

You can estimate your IPD through trial and error. This method is easier than using a ruler, but it may be less accurate.

While wearing the VR headset, focus on text or lines at the center of view. If there isn't any text in your field of view, open a screen that has some text on it.
Adjust the IPD slider until the text is clear. Note the number for future reference.
If the image is clearer for one eye than it is for the other, adjust the headset position. Repeat until the image is clear for both eyes.

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