

Given the diagonal measurement in pixels and inches, use the following formula to calculate PPI. For instance, the width in pixels of a 1920×1080 screen is 1920, and the height is 1080. The width in pixels is equal to the first part of the screen’s resolution, and the height is the second.
#Dpi resolution calculator plus
In other words, the diagonal pixels d p is equal to the square root of the width in pixels w squared plus the height in pixels h squared. Given the screen’s resolution, you can find the number of pixels along the diagonal using the Pythagorean theorem. This might seem complicated, but you can use the Pythagorean theorem to find this using the screen’s resolution. The second step to calculating PPI is finding the total number of pixels along the diagonal measurement. Or, simply use our screen size calculator to find the size. If not, measure the diagonal from one corner to the opposite corner using a tape measure. Most displays, screens, monitors, and televisions are sold by their diagonal measurement, which should be marked on the screen or its documentation. The first step to calculate PPI is to measure the screen’s diagonal size in inches. There are three steps to calculating a screen’s PPI.
