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Pixels Per Inch (PPI):
PPI2:
Dot Pitch (DPI):
Screen Width:
Screen Height:
Screen Diagonal:
Display Size:
Total Pixels:
Aspect Ratio:
About PPI DPI Calculator
What is PPI?
The abbreviation PPI stands for pixels per inch. It is a unit of measurement used to express how many pixels are present on an inch-square surface. Imagine a square inch divided and arranged in a grid of cells to better understand what it means. Every single cell in that grid has a pixel. You may determine the PPI by counting the number of grid cells, commonly known as pixels. The Pixels Per Inch measurement is frequently used to assess the pixel density of displays, including the monitor on your computer or laptop, the TV, and your smartphone. To describe the pixel density of scanners, camera screens, or digitally stored images, the word "PPI" is also sometimes used informally. PPI is sometimes used to indicate the density at which machines print on paper.
What does DPI mean?
When we talk about DPI resolution, the term "resolution" actually refers to the amount of dots per inch; DPI is just an acronym for dots per inch. Simply put, 300 dpi refers to the number of dots per inch, or the printing resolution in this situation. DPI, which stands for dots per inch, is only used when referring to printed material (dot density). The resolution of your monitor in pixels is one example of how resolution can be used in various contexts. You may be familiar with the phrase Full HD, which refers to a pixel resolution of 1920x1080, or the total amount of pixels in both the height and width of your monitor. The DPI resolution always refers to the dots per inch when discussing print. As a piece of advice, raising your DPI won't necessarily improve the quality of your image. For instance, a very old photograph that is only 64 by 120 pixels will appear blocky. The blocks will have 300 dots per square inch when printed, but simply setting the image's resolution to 300 dpi won't add any details that weren't present before.
What is the difference between 300 dpi and 300 ppi?
They are frequently used in tandem. Though conceptually similar, 300 PPI and 300 DPI relate to different things; respectively, a digital picture or a computer screen and a physical printer. The abbreviations PPI and DPI stand for pixels per inch and dots per inch, respectively. You'll probably conclude that they're not the same based on common sense. You'd be accurate, too! PPI and DPI are two distinct concepts even though both phrases describe to density and you may easily mistake pixels for dots. DPI is a term that is correctly used when referring to items like printed paper, whereas PPI mostly relates to screens and digital aspects. The number of ink dots in any given character or artwork is an accurate indicator of the resolution and quality of a printed page. Although dots and pixels are comparable in size and function, DPI and PPI do not measure the same things.
How do DPI and PPI resolution differ is a question we are frequently asked. Answering this is a little easier because it essentially compares physical resolution to a digital resolution. In essence, PPI measures the number of pixels per inch square on a screen, whereas DPI measures the number of dots per inch printed by a physical printer in any given inch squared. It's best to avoid confusing the two; for instance, you can have a DPI of 300 but a PPI of 90. In this case, your prints might appear smoother when printed and blocker on a screen. To get as near to the DPI as feasible, it's best practise to try to design on high-resolution monitors.
How to calculate PPI?
You need two parameters: the screen width and height and the diagonal dimension in inches to compute pixel density in PPI. By first squaring the height and width, adding the two values, then taking the square root of those figures, you may determine the diagonal width in pixels. From here, you may calculate the pixel density in PPI by dividing the diagonal length in pixels by the diagonal length in inches. The following mathematical formula, where w denotes width, h denotes height, and d denotes diagonal screen size in inches, can be used to express this:
PPI = √(w² + h²) /d
Which is better DPI or PPI?
Remember that you are comparing digital to print when you think about PPI vs DPI. When printing digital photographs, the PPI and DPI are related. Because there are only so many pixels in an image, the PPI defines the print size. A higher pixel density ensures that the print will be sharp and have enough details. Even the greatest photo printers will not be able to produce prints of high quality if you use a photo with insufficient pixels. Therefore, you must utilise a digital file with a high PPI for a print of higher quality.
PPI is a crucial metric for assessing an image's quality in proportion to the display size and viewing distance that have been chosen. Theoretically, for screens that are placed farther away from you, a lower PPI is required to deliver high-quality imagery. A greater PPI is required to display high-quality images as the display grows closer to your eyes.
When choosing an image's print resolution, DPI is important. Knowing the appropriate DPI to use for particular prints will help you set the DPI settings correctly, saving you time and money by using the least amount of ink possible without sacrificing image quality.
DPI and PPI are not the same, as you can see. However, they are frequently used in this manner, which causes a lot of misunderstanding. PPI is a metric used to assess the quality of a digital image in relation to viewing distance and screen size. DPI, on the other hand, is used to assess a printed image's quality in relation to the print size and viewing distance. I hope I've made things plain enough for you to decide the PPI and DPI you'll need for scanning, printing, or displaying your images.