What Is My Screen Resolution

How to check your screen resolution

1. Open this page on the screen you want to check. If you have two monitors, drag the browser window onto the one you want; the values follow the window.
2. Read the big number: that is the resolution of the panel in real pixels.
3. Check Display scaling: at 150% scaling a 1920 x 1080 laptop screen gives apps a scaled size of 1280 x 720.
4. Resize the window to see the Browser window size change, which is what a web page has to fit in.
5. Press Copy resolution to paste the values into a support ticket or forum post.

What the results mean

• Screen resolution (the big number) is the scaled size multiplied by the pixel ratio. On Windows, Android, ChromeOS and iPhone this is the native resolution of the panel. On a Mac it is the resolution macOS renders at, which can be higher than the panel when you choose "More space".
• Scaled (CSS) size is the size in the pixels that apps and websites lay out for. Windows calls it the result of "Scale", Macs call it "Looks like".
• Display scaling and pixel ratio are the same thing written two ways: 1.25 is 125%, 2 is 200%. Browser zoom changes them too, so press Ctrl+0 (Cmd+0 on a Mac) for a clean reading.
• Browser window is the space inside this tab. Available area is the screen minus the taskbar or dock.
• Colour depth is usually 24-bit (8 bits per colour). 30-bit appears on some HDR or 10-bit setups.

Common screen resolutions

Your row is highlighted if it is in the table. Phones use taller ratios: an iPhone 16 is 1179 x 2556 and many Android phones are 1080 x 2400.

Native resolution, scaling and why websites see less

A modern screen packs so many pixels into a small area that text drawn at one pixel per point would be unreadably small. So the operating system scales everything up: a 14 inch laptop with a 2880 x 1800 panel at 200% shows things as big as a 1440 x 900 screen, just much sharper. Apps and websites lay out in those scaled "CSS pixels" and the system draws them with all the real pixels. That is why a website may say your screen is 1440 x 900 while the box says 2880 x 1800. This page multiplies the two to show both.

To change it: on Windows, Settings > System > Display > Display resolution (keep the one marked "Recommended") and Scale. On a Mac, System Settings > Displays, and pick a size from "Larger text" to "More space". On Android, Settings > Display > Screen resolution on phones that offer it. The native resolution gives the sharpest image on LCD and OLED panels.

Resolution is not the same as size or sharpness

Resolution counts pixels; it says nothing about inches. A 24 inch and a 32 inch 4K monitor both have 3840 x 2160 pixels, but the smaller one packs them more densely and looks sharper up close. To find the physical size of your screen, use the screen size tool; to work out pixel density from resolution and size, use the PPI calculator; and for the shape of the screen, see the screen ratio page. The device info page lists the resolution along with your browser, GPU and other details.

Common problems and fixes

The resolution is lower than my monitor's

Windows may be set below native: Settings > System > Display > Display resolution, choose the "Recommended" value. Also check the cable (old HDMI or VGA can cap the resolution) and update the graphics driver.

The numbers change when I zoom the page

Browser zoom changes the pixel ratio the page sees. Press Ctrl+0 (Cmd+0 on a Mac) to reset zoom to 100% and the values return to normal.

It shows the wrong monitor

The browser reports the screen its window is on. Drag the window fully onto the other monitor; the values update by themselves.

My Mac shows a resolution higher than the panel

With a "More space" setting macOS renders at a higher resolution and scales the picture down to the panel. Choose the "Default" size to match the panel more closely.