Where to find resolution settings on your Mac

Open System Settings (called System Preferences on older Macs). Click the Apple menu in the top left corner, then select System Settings. From there, go to Displays in the left sidebar.

You will see your current resolution listed under "Resolution" with a dropdown menu. The resolution appears as two numbers — width by height — measured in pixels. A common resolution is 1920 × 1080, which means your screen shows 1920 pixels across and 1080 pixels down.

If you have multiple monitors connected, each one has its own Displays panel. Click the monitor you want to adjust at the top of the window, then change its resolution separately.

Key Takeaways

  • Resolution settings live in System Settings under Displays, accessible from the Apple menu in your screen's top left corner.
  • Your Mac offers a "Scaled" option that lets you choose from several preset resolutions without restarting your computer.
  • Higher resolution makes text and icons smaller but fits more on your screen; lower resolution makes everything larger.
  • Most Macs automatically detect the best resolution for your monitor, so you rarely need to change it unless you want text larger or smaller.

What the resolution numbers mean

Resolution describes how many pixels your screen displays. The first number is the width (how many pixels left to right), and the second is the height (how many pixels top to bottom). A resolution of 2560 × 1600 means 2560 pixels wide by 1600 pixels tall.

Higher resolution packs more pixels into the same physical screen space, so text and icons appear smaller and you fit more content on the display. Lower resolution makes everything larger but shows less at once. Your Mac's native resolution — the one it shipped with — is usually the sharpest option because it matches your screen's physical pixel grid exactly.

Choosing between Scaled and Default resolution

When you open Displays, you see two options: Scaled and Default. Default is your monitor's native resolution, the one it was built to display. This is almost always the sharpest and clearest option.

Scaled lets you pick from several preset resolutions that your Mac adjusts to fit your screen. These are useful if you want everything larger (to reduce eye strain) or smaller (to fit more on screen). Scaled resolutions are not as sharp as Default because your Mac is stretching or shrinking the image, but the difference is usually small enough that you will not notice it in daily use.

If you are having trouble reading text, try Scaled and pick a lower resolution — one with smaller numbers — to make everything bigger. If you want to see more at once, pick a higher resolution.

Why your Mac might show fewer resolution options than you expect

Your Mac only shows resolutions that your monitor can actually display. If you have an older monitor or a monitor not designed for Macs, you may see fewer options than you would on a newer display.

External monitors connected via USB-C, Thunderbolt, or HDMI sometimes need a driver or firmware update to show all available resolutions. Check the monitor manufacturer's website for updates if you are seeing only one or two options on a newer monitor.

If you are using an Apple display like a Studio Display or Pro Display XDR, your Mac automatically detects the correct resolutions and you rarely need to change anything.

Changing resolution on a Mac with an external monitor

Connect your external monitor to your Mac using the appropriate cable — USB-C, Thunderbolt, or HDMI, depending on what your monitor accepts. Open System Settings, go to Displays, and click the name of your external monitor at the top of the window.

The resolution dropdown will show options specific to that monitor. Choose the one you want, and the change takes effect when ready without restarting. If the monitor does not appear in Displays after you plug it in, restart your Mac or check that the cable is fully seated on both ends.

You can set different resolutions for your Mac's built-in display and each external monitor independently. Each monitor remembers its resolution setting, so if you unplug and reconnect it later, it returns to the resolution you chose.

What to do if text looks blurry after changing resolution

Blurry text usually means you have chosen a resolution that does not match your monitor's native resolution. Go back to Displays and select Default instead of Scaled. This uses your monitor's native resolution, which is always the sharpest.

If Default is already selected and text still looks blurry, your monitor may need a driver update. Visit the monitor manufacturer's support page and read the latest driver for your Mac's operating system. Restart your Mac after installing the driver, then check Displays again.

If you need text larger but Default resolution makes it too small, use Scaled and pick the next-lower resolution option. The text will be slightly less sharp than Default, but it will be readable and larger than before.

Frequently Asked Questions

Do I need to restart my Mac after changing resolution?

No. Resolution changes take effect when ready on modern Macs. Your screen will go black for a second or two while the change happens, then return to normal at the new resolution. You do not need to restart your computer.

What is the difference between Scaled and Default?

Default is your monitor's native resolution — the sharpest option because it matches your screen's physical pixels exactly. Scaled offers preset resolutions that your Mac adjusts to fit your screen. Scaled resolutions are less sharp than Default but let you make text and icons larger or smaller without restarting.

Why does my external monitor show only one resolution option?

Your monitor may need a driver or firmware update. Check the manufacturer's website for the latest driver for your Mac's operating system. If the monitor is very old or not designed for Macs, it may genuinely support only one resolution. Restart your Mac after updating the driver and check Displays again.

Can I set different resolutions for multiple monitors?

Yes. Each monitor has its own Displays panel in System Settings. Click the monitor you want to adjust at the top of the window, then set its resolution independently. Your Mac remembers each monitor's setting and applies it automatically when you reconnect.

Will changing resolution affect my Mac's performance?

No. Your Mac's speed does not change based on resolution. Higher resolution uses slightly more graphics processing power, but the difference is too small to notice in everyday use. Resolution only changes how large or small things appear on your screen.