What is PPI? Is it important? How to Calculate it?

PPI Stand for Pixel Per Inch. PPI is commonly known as pixel density. In order to understand about PPI you need to first know the exact and basic meaning of pixel. I have already explain the pixel. As the name suggest PPI is the no of  pixel per inch. It is also known as Pixels Per Centimeter (PPCM). It is an very important factor of screen resolution. Suppose in one inch there is one thousand pixels, if we increase it to two thousand than image quality will be more clear than before because pixels in per inch increased. So generally  it is said that more the pixels in per inch, more the image quality in the screen.

How to Calculate Pixel Per Inch(PPI)?

let us take an example of smartphone with an screen resolution of 1920x1080 pixel which is 5.5 inch  from both the corner as shown in the figure. Do you remember Pythagoras theorem in which if we get two side of the triangle we can find the third side. So we can find PPI in the same manner. It is already shown in figure. 

Note: If you want to calculate pixel per centimeter than you can take centimeter instead of inch in the formula.  

conclusion:

In this article you have learned about PPI, how it is calculated and its importance. If you likes our article and want to appreciate us you can share our articles with you're friends and relatives and join us on our social media handle.