What is my screen resolution?

These are the sizes web pages see on common screens, and the real pixels behind them. The last column is the size Rescreen records the whole screen at in Chrome.

Phones and tablets cannot share their screen with a web page, so a browser-based recorder like Rescreen records on a computer. To film yourself instead, check the camera with the webcam test.

Browsers redraw a page in step with the screen, most often 60 times a second, and 120 or 144 on faster screens. The page asks the browser to tell it each time it draws, for about a second, and takes the middle gap between those moments, so one late frame does not change the answer. A result within 4% of a rate screens are sold at, such as 59.9 Hz, is shown as that rate.

It can read low. A laptop on battery or in low power mode can slow the screen down, a busy computer can miss frames, and a background tab is paused altogether. Safari can hold pages to 60 Hz on a 120 Hz ProMotion screen. For the exact setting, use your system’s display settings (below).

Every system shows the resolution in its settings. These are the steps:

Display settings (Windows)

1. Right-click the desktop and choose Display settings.
2. Read Display resolution for the real pixels and Scale for the scaling.
3. With more than one screen, select each one in the picture at the top first.

The resolution marked (Recommended) is the screen’s native one.

System Settings (Mac)

1. Choose Apple menu → System Settings, then Displays.
2. Hover over each size picture to see the size it looks like.
3. For the real pixels, choose Apple menu → About This Mac → More Info → System Report → Graphics/Displays.

A Mac shows the “looks like” size, which is half the real pixels on a Retina screen.

Settings (Chromebook)

1. Select the time at the bottom right, then Settings.
2. Go to Device → Displays.
3. Read the Display size and Resolution for each screen.

Settings (iPhone and Android)

1. Phones do not show a resolution in settings; look the model up on the maker’s specifications page.
2. On Android, Settings → Display → Screen resolution appears on some Samsung and other phones that let you change it.

This page shows the phone’s real pixels without looking anything up.

Settings show one screen at a time and rarely the refresh rate and scaling together. This page shows them side by side and gives you text you can copy.

• It reads the screen this browser window is on. Listing every screen needs Chrome or Edge on a computer and your permission; other browsers show one screen at a time.
• On a Mac with a scaled setting (“More Space” or “Larger Text”), macOS draws at the size shown here and shrinks the picture to fit the panel, so the panel’s own pixel count can differ.
• Zooming the page changes the size web pages see and the scaling. Press Ctrl+0, or Cmd+0 on a Mac, for your system’s own figures. The real resolution stays the same.
• The refresh rate is an estimate from this browser and can read low on battery, on a busy computer or in Safari.
• Colour depth and colour range are what the browser reports. Many browsers report 24-bit even on a 10-bit screen.
• Tested in Chrome and Safari on a Mac and at phone size. The figures come from standard browser features that Edge and Firefox also have.

• A browser’s device pixel ratio is the number of real pixels for each CSS pixel: 1 on a classic 96 DPI screen, 2 on a Retina or other high-density screen. Source, checked 8 November 2026.
• Zooming a page in raises its device pixel ratio, because each CSS pixel gets bigger. Pinch-zooming on a touchpad or phone does not. Source, checked 8 November 2026.
• Browsers call a page’s animation code about once per screen refresh, most often 60 times a second, and pause it in background tabs. Source, checked 8 November 2026.
• A page can list every connected screen only with the Window Management API, which needs the visitor’s permission and a secure page, and is not available in every browser. Source, checked 8 November 2026.
• Windows sets resolution and scale separately, under Settings → System → Display, and marks the best of each (Recommended). Source, checked 8 November 2026.
• On a Mac, the resolution is under Apple menu → System Settings → Displays, where Default uses the best resolution for the display. Source, checked 8 November 2026.