What Is My Screen Resolution

Your Screen Resolution (browser-reported)
— × —
Physical (hardware) pixels: — × — — Scale: —
Screen Width
— px
Screen Height
— px

The number above represents your screen/monitor resolution (in width and height).

This micro web utility helps you to find your monitor/screen resolutions. There is no need to do the cumbersome right click, properties, settings, etc, to find out your screen resolution.

If you need to change your screen resolution in Windows, follow these instructions.

Viewport (CSS px)
—
Physical Viewport (CSS × DPR)
—
Device Pixel Ratio (DPR)
—
Color Depth
—
Pixel Depth
—
Total pixels (physical)
—
Orientation
—
Available (availWidth × availHeight)
—
Estimated screen diagonal
—
Note: diagonal is estimated from CSS pixels using CSS definition of 1in = 96 CSS px. This is an approximation; for exact inches use your monitor spec (or enter it via the info button).
Tip: Screen shows the browser-reported CSS pixel size. Multiply CSS pixels × DPR (device pixel ratio) to get the physical (hardware) pixels used by your display. Example: 1536 × 1.25 = 1920. Viewport shows the available CSS pixel size in your browser window.

Why screen resolution matters

Knowing your screen resolution and device pixel ratio helps when choosing image sizes, testing responsive layouts, and ensuring crisp visuals on high-DPR displays (like Retina). Use this tool to quickly copy values or share them with designers and developers.

  • Use window.innerWidth and innerHeight to measure viewport size.
  • Use window.devicePixelRatio to detect DPR and serve higher resolution images if needed.
Viewport Window Screen

Screen resolution matters because it determines how sharp, clear, and detailed everything looks on your device. Higher resolutions provide crisper text, smoother images, better video and gaming quality, and more workspace for multitasking. It also affects responsive web design, UI layouts, display scaling, and overall user experience. Whether you’re designing, gaming, or simply browsing, your screen resolution directly influences clarity, performance, and how effectively content fits on your screen.

Common Screen Resolutions

Quick reference of common display resolutions, their aspect ratios, and total pixel counts. Useful for designers, developers, and anyone checking device specs.

Resolution Name Aspect Ratio Total Pixels Typical Devices
7680 × 4320 8K UHD 16:9 33,177,600 Emerging technology for high-end TVs
3840 × 2160 4K UHD 16:9 8,294,400 High-end monitors, TVs
2560 × 1440 QHD / 1440p 16:9 3,686,400 Gaming monitors, prosumer laptops
1920 × 1080 Full HD (1080p) 16:9 2,073,600 Laptops, desktops, many monitors
1536 × 864 HD+ ≈16:9 1,327,104 Mid-range laptops (scaled displays)
1366 × 768 HD ≈16:9 1,049,088 Budget laptops
1280 × 720 HD (720p) 16:9 921,600 Small laptops, older devices
1024 × 768 XGA 4:3 786,432 Older monitors & tablets
800 × 600 SVGA 4:3 480,000 Very old displays / embedded devices
3440 × 1440 UltraWide (WQHD) 21:9 4,953,600 Ultrawide monitors (productivity & gaming)
2560 × 1080 UltraWide (UW-UXGA) ≈21:9 2,764,800 Ultrawide laptops & monitors

Tip: Aspect ratio is width divided by height (e.g., 1920 ÷ 1080 = 16:9). Total pixels = width × height and indicates how many individual pixels make up the display.

About WhatIsMyScreenResolution.info

WhatIsMyScreenResolution.info is a fast, lightweight, and privacy-focused tool designed to instantly detect your screen resolution, browser viewport size, aspect ratio, pixel density, total pixels, and other display details. The website helps users quickly understand how their device is rendering content without needing to open settings or install software. Whether you're a developer testing responsive layouts, a designer working on UI elements, a gamer adjusting display settings, or simply a user curious about your device’s resolution, this tool provides accurate, real-time information in one click. We prioritize speed, simplicity, and accuracy — with no tracking, no cookies, and no unnecessary scripts — making it one of the most reliable screen testing utilities on the web.