What is my screen resolution?
Your screen resolution, aspect ratio, pixel ratio, colour depth and refresh rate, read live from this device. Below you can also see how your screen would look mirrored to a standard 16:9 TV.
Mirror it to the big screen
Get the Screen Mirroring app
The Screen Mirroring app lets you pick the output resolution, so you can match your TV and avoid a soft or stretched picture.
On a 16:9 TV
How your screen looks mirrored to a TV
Most TVs are 16:9. When your screen has a different shape, mirroring keeps the whole picture and adds black bars so nothing is cut off. To check the TV picture itself, run the TV screen test.
In short
What this test can and cannot tell you
What it measures: The resolution, aspect ratio, pixel ratio, colour depth and refresh rate of the device you open the page on, read live from its browser.
A good result: A 16:9 screen fills a standard TV edge to edge. Any other shape still mirrors in full, with black bars on the sides or at the top and bottom.
What it cannot tell you: The resolution of your TV, unless you open the page in the TV's own browser. Browser zoom and display scaling can change the numbers, and the refresh rate is an estimate.