Check your monitor resolution in Windows

The fastest way is to right-click on your desktop and select Display settings. Scroll down to the Display resolution section. Windows shows your current resolution as two numbers — width by height, measured in pixels. Common resolutions are 1920×1080 (called 1080p), 2560×1440 (called 1440p), or 3840×2160 (called 4K).

If you do not see Display settings in the right-click menu, open the Settings app by pressing the Windows key and typing "settings". Click System, then Display on the left side. The resolution dropdown is in the main panel.

Windows also lets you check resolution for each monitor separately if you have more than one plugged in. In Display settings, scroll to Multiple displays and click on the monitor you want to check. The resolution shown applies only to that screen.

Check your monitor resolution on Mac

Click the Apple menu in the top-left corner and select System Settings (or System Preferences on older macOS versions). Click Displays in the sidebar. Your current resolution appears under Resolution.

On newer Macs, you may see options like "Default for display" or specific pixel counts. The resolution is the same number either way — it is just displayed differently depending on your macOS version. If you have multiple monitors, click each one in the Displays menu to see its individual resolution.

Check resolution on Linux

The method depends on your desktop environment. On Ubuntu with GNOME, click the system menu (top-right corner), select Settings, then Displays. Your resolution appears in the main panel.

On other Linux distributions, you can open a terminal and type xrandr to see all connected monitors and their resolutions listed in the output. Look for the resolution next to the monitor name — it will be in the format "1920x1080" or similar.

Key Takeaways

  • Windows users can right-click the desktop, select Display settings, and find resolution in the Display resolution section.
  • Mac users open System Settings, click Displays, and read the resolution listed in the main panel.
  • Linux users can check Displays in their desktop settings menu or type xrandr in a terminal to see all monitor resolutions at once.
  • Resolution is always shown as two numbers: width by height in pixels, such as 1920×1080 or 2560×1440.
  • If you have multiple monitors connected, each one has its own resolution setting that you can check individually.

What the numbers mean

Resolution tells you how many pixels wide and how many pixels tall your screen is. A 1920×1080 monitor has 1920 pixels across and 1080 pixels from top to bottom. More pixels means sharper text and images, but also means everything on screen is smaller unless you adjust the zoom level.

The aspect ratio — the relationship between width and height — is also built into the resolution. Most modern monitors are 16:9 (widescreen), which is why 1920×1080, 2560×1440, and 3840×2160 are all common. Some older or specialty monitors use 4:3 (like 1024×768) or 21:9 ultrawide (like 3440×1440).

Why your monitor might show a different resolution than you expected

Sometimes your operating system runs at a lower resolution than your monitor supports. This happens when your graphics card is not powerful enough, when the correct driver is not installed, or when you have manually changed the setting. Check your monitor's manual or the manufacturer's website to see what resolution it is designed for, then compare it to what your operating system shows.

If your monitor supports a higher resolution than what is currently set, you can usually change it in Display settings. Open the resolution dropdown and select a higher option. Your monitor will switch when ready — if the text becomes too small to read, you can zoom in using your operating system's zoom settings without changing the actual resolution.

Finding resolution on older monitors or displays

If your monitor does not appear in your operating system's display settings, or if you are trying to find the resolution of a monitor that is not currently connected, check the physical monitor itself. Most monitors have a model number printed on the back or bottom. Search that model number online plus the word "resolution" to find the specifications.

You can also look for a sticker or label on the monitor that lists the resolution directly. Some older monitors have this information printed on the front bezel or on a label inside the stand. If you have the original manual or packaging, the resolution is listed there as well.

Frequently Asked Questions

Can I change my monitor resolution to something higher?

Only if your monitor physically supports it. Your graphics card and monitor must both handle the resolution you want to use. If a higher resolution does not appear in your Display settings dropdown, your monitor does not support it. Trying to force a resolution your monitor cannot handle may cause a black screen or distorted image.

Why does my resolution look blurry or pixelated?

Blurriness usually means your operating system is running at a lower resolution than your monitor supports, or you are using a resolution that is not the monitor's native one. Pixelation often means the resolution is too low for your screen size. Check what your monitor's native resolution is (from the manual or manufacturer website) and set your operating system to match it exactly.

What is the difference between resolution and refresh rate?

Resolution is how many pixels your screen displays (like 1920×1080). Refresh rate is how many times per second the image updates (like 60 Hz or 144 Hz). They are separate settings. You can have a high resolution with a low refresh rate, or vice versa. Both appear in your Display settings, but in different sections.

Do I need to restart my computer after changing resolution?

No. Resolution changes take effect when ready. If you change the resolution and do not like it, you can change it back right away without restarting. Some older computers may need a restart if the graphics driver does not update properly, but this is rare on modern systems.