Screen Resolution Checker
Instantly detect your display's resolution, size, and specifications
Width × Height in pixels
Display Information
Browser Viewport
Device Information
What is Screen Resolution?
Screen resolution refers to the number of pixels displayed on your screen, measured as width × height. For example, a resolution of 1920 × 1080 means your display shows 1,920 pixels horizontally and 1,080 pixels vertically, totaling over 2 million pixels that work together to create the images you see.
Every digital display, whether it's a desktop monitor, laptop screen, tablet, smartphone, or television, has a specific resolution that determines how much visual information can be displayed at once. The higher the resolution, the more pixels are packed into the screen, resulting in sharper images, clearer text, and more detailed graphics.
Our screen resolution checker tool automatically detects your current display resolution the moment you visit this page. It works directly in your browser and supports all devices including Windows PCs, Mac computers, iPhones, iPads, Android phones, and tablets. No downloads or installations required.
Why Screen Resolution Matters for Your Display
Understanding your display resolution is essential for several reasons. Whether you're a web developer testing responsive designs, a graphic designer creating pixel-perfect artwork, a gamer optimizing visual settings, or simply someone who wants the best viewing experience, knowing your screen resolution helps you make informed decisions.
Image Quality and Visual Clarity
Higher resolutions like 4K (3840 × 2160) or QHD (2560 × 1440) display more pixels per inch, making text appear crisp and images look detailed. Lower resolutions such as HD (1280 × 720) show fewer pixels, which can make content appear less sharp, especially on larger screens.
Workspace and Productivity
A higher screen resolution provides more screen real estate, allowing you to view more content without scrolling. This is particularly beneficial for professionals who work with spreadsheets, code editors, video editing software, or multiple applications simultaneously.
Gaming and Entertainment
For gamers, resolution directly impacts the visual quality of games. While 1080p (Full HD) remains popular for its balance of quality and performance, many gamers now prefer 1440p or 4K for more immersive experiences. However, higher resolutions require more powerful graphics cards to maintain smooth frame rates.
Responsive Web Design
Web developers and designers need to test websites across various screen resolutions to ensure proper rendering on all devices. Our tool helps you quickly identify your current resolution for testing and validation purposes.
Understanding Pixel Density and Display Quality
While screen resolution tells you the total number of pixels, pixel density measured in PPI (pixels per inch) determines how sharp your display actually appears. A higher PPI means pixels are packed more tightly together, resulting in smoother edges and more detailed images.
What is Device Pixel Ratio (DPR)?
The device pixel ratio shown in our tool indicates how many physical pixels are used to display one CSS pixel. Modern Retina displays and HiDPI screens typically have a DPR of 2 or higher, meaning they use multiple physical pixels for each logical pixel, resulting in incredibly sharp visuals.
Color Depth Explained
Color depth, measured in bits, determines how many distinct colors your display can show. Most modern monitors support 24-bit color (also called True Color), which can display over 16.7 million colors. Professional monitors may support 30-bit or even 36-bit color for more precise color reproduction.
Aspect Ratio and Screen Shape
The aspect ratio describes the proportional relationship between your screen's width and height. Common aspect ratios include 16:9 (widescreen, standard for most monitors and TVs), 16:10 (common on laptops), 21:9 (ultrawide monitors), and 4:3 (older displays). Your aspect ratio affects how content is displayed and whether you'll see black bars when watching videos.
Popular Display Resolutions and Their Names
Below is a comprehensive list of common screen resolutions you'll encounter across various devices. Understanding these standards helps you compare displays and choose the right monitor for your needs.
| Resolution Name | Dimensions (Width × Height) | Total Pixels | Common Use |
|---|---|---|---|
| 8K UHD | 7680 × 4320 | 33.2 million | High-end TVs, professional video production |
| 5K | 5120 × 2880 | 14.7 million | iMac displays, professional workstations |
| 4K UHD | 3840 × 2160 | 8.3 million | Modern TVs, high-end monitors, gaming |
| UWQHD (Ultrawide) | 3440 × 1440 | 4.95 million | Ultrawide monitors, productivity, gaming |
| QHD / 2K / 1440p | 2560 × 1440 | 3.7 million | Gaming monitors, professional displays |
| WQXGA | 2560 × 1600 | 4.1 million | MacBook Pro, premium laptops |
| Full HD / 1080p | 1920 × 1080 | 2.07 million | Standard monitors, laptops, TVs |
| HD+ / 900p | 1600 × 900 | 1.44 million | Budget laptops, older displays |
| HD / WXGA | 1366 × 768 | 1.05 million | Entry-level laptops, budget monitors |
| HD / 720p | 1280 × 720 | 0.92 million | Smartphones, streaming video |
How to Check Screen Resolution on Different Devices
While our online screen resolution checker provides instant results, you may sometimes need to check or change your resolution through system settings. Here's how to find your display resolution on various operating systems:
Check Screen Resolution on Windows 10 & 11
Right-click on your desktop and select Display settings. Scroll down to find the Display resolution dropdown menu. Windows will show your current resolution and mark the recommended setting based on your monitor's native resolution.
Check Screen Resolution on macOS
Click the Apple menu and select System Settings (or System Preferences on older versions). Navigate to Displays to view your current resolution. Mac users can choose between "Default for display" or scaled options for different screen real estate.
Check Screen Resolution on Android
Open Settings, go to Display, and look for Screen resolution or Display size. Some Android phones allow you to switch between HD+, FHD+, and WQHD+ resolutions to balance visual quality and battery life.
Check Screen Resolution on iPhone & iPad
iOS devices don't allow manual resolution changes. However, you can find your device's resolution by searching for your specific iPhone or iPad model specifications on Apple's website or using our tool above.
Screen Resolution vs Browser Viewport: Key Differences
Our tool displays both your screen resolution and browser viewport because they serve different purposes. Understanding the difference is crucial, especially for web developers and designers.
What is Screen Resolution?
Screen resolution represents the total number of physical pixels on your entire monitor or display. This value remains constant regardless of how you resize your browser window or what applications you have open.
What is Browser Viewport?
The browser viewport is the visible area of a web page within your browser window, excluding toolbars, scrollbars, and the address bar. This value changes when you resize your browser and is what responsive web design targets when adapting layouts for different screen sizes.
Why Both Matter
Web developers use viewport dimensions to create responsive layouts that adapt to different browser sizes. Meanwhile, graphic designers need to know the full screen resolution when creating wallpapers, splash screens, or full-screen applications. Our tool provides both measurements to serve all your needs.
Frequently Asked Questions About Screen Resolution
What is the difference between native resolution and supported resolution?
Native resolution is the fixed number of physical pixels built into your display panel (e.g., 1920 × 1080 for a Full HD monitor). Supported resolutions are lower values your system can scale to. Using anything other than your native resolution may result in reduced image clarity as the content is stretched or compressed to fit.
Can I use a resolution higher than my monitor supports?
No, you cannot physically display more pixels than your monitor has. While some software can simulate higher resolutions through supersampling, your screen's native resolution is the maximum it can truly display. Attempting to set a resolution higher than supported will typically result in an error or automatic adjustment.
Does higher resolution affect computer performance?
Yes, higher resolutions require more processing power from your GPU (graphics card). When gaming or running graphics-intensive applications at 4K resolution, you'll need a significantly more powerful graphics card compared to running at 1080p. Higher resolutions can reduce frame rates and may impact overall system performance.
What is the most common screen resolution today?
1920 × 1080 (Full HD) remains the most common desktop screen resolution worldwide. For mobile devices, popular resolutions include 1080 × 2400 and 1080 × 2340. As 4K monitors become more affordable, the adoption of 3840 × 2160 resolution continues to grow steadily.
What does the pixel ratio number mean?
The device pixel ratio (DPR) indicates how many physical pixels represent one CSS/logical pixel. A DPR of 1 means one physical pixel equals one logical pixel (standard displays). A DPR of 2 (common on Retina and HiDPI displays) means four physical pixels are used for each logical pixel, resulting in much sharper visuals.
Why is my detected resolution different from my monitor's specs?
This typically happens due to display scaling settings in your operating system. Windows and macOS often apply scaling (like 125% or 150%) to make text and icons more readable on high-resolution displays. This scaling affects the reported resolution. Check your display settings to see if scaling is applied.
Is 1080p still good enough in 2025?
Yes, 1080p (Full HD) remains perfectly adequate for most everyday tasks including web browsing, office work, streaming, and casual gaming. It offers good visual quality while being less demanding on hardware. However, for professional photo/video editing, gaming on large monitors (27" or larger), or productivity work requiring more screen space, higher resolutions like 1440p or 4K provide noticeable benefits.