PPI Calculator: Find Your Monitor’s Pixel Density

🖥️ PPI Calculator — Monitor Pixel Density

Calculate pixels per inch (PPI) for any monitor, TV, or screen using resolution and display size

Quick Presets
📏 Enter Display Specifications
💡 How to measure your screen: Measure diagonally from corner to corner of the visible screen area only (not the bezel/frame). Use the resolution from your display settings (Windows: Settings > Display, Mac: System Preferences > Displays).
✨ Your Display Results
📊 PPI Quality Benchmarks
72+ Basic Usable
90+ Comfortable
150+ Sharp
220+ Retina
🖥️ Popular Monitor PPI Reference
Monitor / Display Resolution Screen Size PPI Quality Rating
Dell SE2422H 1920×1080 23.8" 93 PPI Comfortable
LG 27GL850 2560×1440 27" 109 PPI Good
LG 27UK850 (4K) 3840×2160 27" 163 PPI Very Sharp
Dell U3223QE (4K) 3840×2160 31.5" 140 PPI Sharp
Apple Pro Display XDR 6016×3384 32" 218 PPI Retina
MacBook Pro 14" (M3) 3024×1964 14.2" 254 PPI Retina
Samsung 49" Ultrawide 5120×1440 49" 109 PPI Good
Samsung 55" 4K TV 3840×2160 55" 80 PPI Basic
📱 Smartphone & Tablet PPI Reference
Device Resolution Screen Size PPI
iPhone 15 Pro 2556×1179 6.1" 460 PPI
Samsung Galaxy S24 2340×1080 6.2" 416 PPI
Google Pixel 9 2424×1080 6.3" 422 PPI
iPad Pro 12.9" (M2) 2732×2048 12.9" 264 PPI
iPad Air 11" (M2) 2360×1640 11" 264 PPI
Samsung Galaxy Tab S9 2560×1600 11" 274 PPI
📐 PPI by Resolution & Size Matrix
Screen Size 1080p PPI 1440p PPI 4K PPI 8K PPI
21.5" 102 136 204 409
24" 92 122 183 367
27" 82 109 163 326
32" 69 92 138 275
40" 55 73 110 220
55" 40 53 80 160
📌 Ideal Viewing Distance Rule: For a display to appear "Retina" quality (where individual pixels are indistinguishable), the PPI only needs to exceed the eye's resolving power at your viewing distance. At 24" (60cm) distance, 110 PPI is typically sufficient. At 12" (30cm), you need 220+ PPI. At arm's length (36"), 90 PPI can appear perfectly sharp.
💻 Recommended PPI by Use Case
Use Case Min. PPI Recommended PPI Ideal Setup
Office / Productivity 80 PPI 100–120 PPI 1440p 27"
Gaming (FPS / Action) 90 PPI 109–163 PPI 1440p or 4K 27"
Photo / Video Editing 100 PPI 140–220 PPI 4K 27"–32"
Graphic Design 110 PPI 150–218 PPI 4K 27" or Pro XDR
Laptop / Portable 130 PPI 200–300 PPI 2K or 4K 13"–15"
Home Theater TV 40 PPI 60–80 PPI 4K 55"–65"

PPI-calculator gives fast estimate, how many pixels answer for every inch of your screen. It, or pixels each inch is the most basic tool for estimate the real density of your monitor. The good thing about such programs is that they take the resolution of your screen and its diagonal size, to later point, how sharp the image looks actually.

To start to use such calculator, you need two things: the number of pixels by horizontal and vertical, together with the diagonal screen size in inches. Makers usually mention that diagonal somewhere. For example 13,3 inches or 6,7 inches.

How to Use a PPI Calculator

Later the calculator finds the diagonal in pixels by means of this formula: one squares the width, square the height, adds them and take the square root. Sharing that result by the real screen size, one receives the PPI.

Besides only the PPI, the most many of those tools add extra features. One can receive pixel-pitch, screen ratio, sizes of the screen, whole pixel count and even pixels each sqaure inch… Everything in one place.

Some of them are flexible about units: enter values in inches and you will have PPI, change to centimetres and you will receive pixels each centimetre. Such flexibility makes them truly practical, whether one thinks metric or imperial.

Choosing a monitor, the PPI truly matters. A normal 24-inch 1080p monitor reaches around 91,79 PPI, what works well for the most many folks. If one stretches same resolution too 27 inches, the density drops clearly.

On the other hand, jumping to 2560×1440 on a 27-inch screen, one reaches 108,79 PPI. That makes text and icons a bit more small, so maybe you will have to expand your scaling settings. Some folks feel themselves entirely comfortable at 85 PPI, while others do not accept less than 120.

Gaming setups commonly favour a 27-inch 1440p monitor, that sits at around 109 PPI. It reaches sweet balance, where one can reach high frame rates easily, without needing the most expensive graphics card. Naturally, individual pixels could show, if one looks at it too closely, but truly they disappear, when you dive into the game.

In graphical work and printing the PPI matters also a lot. There are converters, that help to exchange pixels, DPI, millimeters and other units. In Photoshop one can control PPI and print size under Image, later Image Size.

About VR headsets? Truly, PPI matters less here, because the key is pixels each degree, that depends on pixel density, screen size and the distance of the optics to your eyes, whatrequires its own calculation.

To find a PPI-calculator online, you need only around thirty seconds. Simply search “PPI calculator” and you will find a set of free options.

PPI Calculator: Find Your Monitor’s Pixel Density

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