The pupillary distance (PD) measurement is a requirement for people who want to purchase eyeglasses. Here, find out how to measure your PD using a mirror and a ruler. Share on Pinterest Some eyewear ...

Pupillary distance is the space — measured in millimeters (mm) — from the center of one pupil to another. When you need glasses, an optometrist or an optician will measure this distance to make sure ...

Nothing truly outpaces a laser distance measure when it comes to taking quick, accurate measurements. They come in a wide range of working distances and feature sets that can allow you to calculate ...

We may receive a commission on purchases made from links. Measuring things is an essential part of building—whether you're a professional contractor or an occasional DIY-er, you must have a reliable ...

Measuring distances accurately has become significantly easier with the advent of smartphone technology, particularly with the array of distance measuring apps available for both Android and iPhone.