Pixel density calculator
What is pixel density
Pixels per inch (PPI) is a measurement of the pixel density (resolution) of devices in various contexts: typically computer displays, image scanners, and digital camera image sensors. The PPI of a computer display is related to the size of the display in inches and the total number of pixels in the horizontal and vertical directions.
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More on pixel density
If you want to calculate pixel density of your screen, you will have to know: horizontal and vertical pixel counts and your diagonal screen size. Then apply this formula, or use our calculator;)
\(
d_p = \sqrt{w^2 + h^2}
\)
\(
PPI = \dfrac{d_p}{d_i} \ \
\)
where| \( w \) | is width resolution in pixels |
| \( h \) | is height resolution in pixels |
| \( d_p \) | is diagonal resolution in pixels |
| \( d_i \) | is diagonal size in inches (this is the number advertised as the size of the display) |
If you want to know even more, check out this awesome Linus Tips video below.