- Online Pupillary Distance Measurement Tool
What is Pupillary Distance?
Pupillary distance (PD) is the distance between your pupils, measured in millimetres, and is essential for accurately positioning your eyeglass lenses. When PD is correct, you get clear and comfortable vision. If it’s wrong, your glasses may not align properly with your eyes, which can lead to eye strain, headaches, and reduced visual clarity. Accurately measuring your PD ensures the best visual experience.
Online Pupillary Distance
Measurement Tool
Our free online pupillary distance measurement tool makes it easy to measure your PD in minutes.
How to measure pupillary distance online with our free tool, follow these simple steps
How to measure pupillary distance online with our free tool, follow these simple steps
Pupillary distance (PD) is the distance between your pupils, measured in millimetres, and is essential for accurately positioning your eyeglass lenses. When PD is correct, you get clear and comfortable vision. If it's wrong, your glasses may not align properly with your eyes, which can lead to eye strain, headaches, and reduced visual clarity. Accurately measuring your PD ensures the best visual experience.
To use our tool, follow these simple steps
Click on the "Measure your PD button" to the left.
Place your phone or computer screen about an arms length away from your face.
Face a bright light source, with no light coming from behind you. Remove your glasses before you begin.
Align your face within the green guideline and hold still for 3 seconds. Receive your PD measurement and order your glasses.
Traditional method of measuring pupillary distance
Traditional method of measuring pupillary distance
Traditionally, pupillary distance is measured by an optometrist or ophthalmologist using a pupillometer. A pupillometer is a device that measures the distance between the pupils. The process of measuring pupillary distance is painless and takes only a few minutes to complete.
During the measurement, you'll be asked to look straight ahead while the optometrist positions the pupillometer in front of your eyes. The device measures the distance between your pupils accurately, ensuring your prescription glasses will be properly aligned for optimal vision clarity and comfort.
Advantages of using our online pupillary distance measurement tool
Advantages of using our online pupillary distance measurement tool
There are several advantages to using our online pupillary distance measurement tool. Firstly, our tool is completely free to use. No need to visit an optometrist just to measure your PD, and no need to spend money on complicated measuring tools. All you need is your computer, and our online measurement tool does the rest. Secondly, our tool is incredibly easy to use. Even if you're not tech-savvy, you can have your PD measured in a matter of minutes.
Anyone can use our online tool – all you need is a computer or a smartphone with a camera. Thirdly, our tool is accurate. Our team of experts has spent countless hours developing and refining our online measurement tool to ensure that it is as accurate as possible. You can confidently use our online tool to measure your PD, knowing that you're getting a precise and reliable result.
Learn your PD measure with ruler
Measure your PD yourself by following these steps:
Grab a small ruler in one hand, and have your pencil and paper handy.
Close your left eye and align the "0" over the centre of your right pupil.
Measure the distance from your right to your left pupil.
The number that lines up directly over your left pupil is your PD (an average PD for an adult ranges between 58-65).
Grab a small ruler in one hand, and have your pencil and paper handy.
Close your left eye and align the "0" over the centre of your right pupil.
Measure the distance from your right to your left pupil.
The number that lines up directly over your left pupil is your PD (an average PD for an adult ranges between 58-65).
Need a new prescription or help with PD measurement?
Whether you require a new prescription or assistance with PD measurement, we're here to help.





