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Pixels per Inch PPI Calculator

This PPI Calculator tool enables you calculate the pixel per inch or PPI of your Smartphone, Tablet, or Computer. Just enter the pixel width and pixel height of the display and the screen size and hit Calculate.

Pixel Density Calculator

Horizontal Pixels (Width):   

Vertical Pixels (Height):   

Diagonal Screen Size - Inches:   

Pixel Density is an indication of the quality of a display. Off course there are other important indicators such as colour saturation and reproduction and the ability of the display to adjust to variuos lighting situation for better outdoor view. However, every other variable kept constant the pixel density tells you are crisp and brilliant a display would be.

The higher the ppi the more brilliant a display would view. Of course there is a limit above which the human eye may nolonger be able to notice any improvement in view quality at normal viewing distance. It is believed that ppi values of around 300 ppi is that upper limit.

NaijaTechGuide Pixel Density calculator enables you calculate the pixel per inch of your phone or tablet. Just enter the pixel width and height of the display and the diagonal screen size and hit calculate. For example, Nokia Lumia 520 has a 4.0-inch display with 480 x 800 pixels resolution. To calculate its ppi enter 480 in the Horizontal pixel field, 800 in the vertical pixel field and 4 into the screen size field and hit calculate. This gives you a ppi of 233.24.

How to Calculate PPI?

Pixels Per Inch (PPI) is a measurement of screen density and is used to determine the quality of device displays. The term refers to the number of individual pixels that can be placed within one inch of a display without overlap. The higher the PPI, the sharper and crisper the image on the screen. Knowing how to calculate PPI can be beneficial in various fields, such as graphic design or when purchasing a new device, as it allows you to assess image quality accurately.

To calculate PPI, you will need to know the resolution of your display and its size. The resolution refers to the total number of pixels displayed on the screen and typically comes in a width by height format, such as 1080x1920. The size of the display is the diagonal length measured in inches.

Once you have these values, you can use a PPI Calculator. A PPI Calculator is an online tool that simplifies the process of calculating PPI. To use a PPI Calculator, input your screen's resolution and size, and the calculator will instantly provide you with the PPI.

However, if you wish to calculate PPI manually, you can do so using Pythagoras' theorem. First, find the diagonal resolution by squaring the width, adding it to the square of the height, and then taking the square root of that sum. Once you have this number, divide it by the size of your screen to get your PPI.

√([width pixels]2 + [height pixels]2) ÷ [screen size]

Calculating PPI is a straightforward process that can be done either manually or with the aid of a PPI Calculator. Regardless of how you choose to calculate it, understanding PPI is crucial for those looking to optimize their visuals for specific display sizes or assess the quality of different displays.

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