What is my screen resolution?
Your screen size, pixel ratio and browser window, read straight from your device.
- 100% free
- No sign-up
- Runs in your browser
How to use What is my screen resolution
- Open the page
- Read the details
- Copy them
Your screen resolution
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Reading your screen…
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How to use What is my screen resolution
Open the page
Your screen is read as soon as the page loads, with nothing to install or allow.
Read the details
See the screen size, the physical resolution, the pixel ratio, the window size, the aspect ratio, colour depth, touch and HDR.
Copy them
Press Copy all to paste every value into a support ticket, a bug report or a chat.
Why use Utils365
Both kinds of pixels
See the CSS size websites use and the physical resolution after display scaling, with the pixel ratio between them.
Live window size
The browser window size updates as you resize, handy for testing responsive designs.
More than resolution
Aspect ratio, colour depth, orientation, touch support, HDR and wide colour, all in one place.
Nothing sent
Everything is read by your own browser and shown on this page only.
Frequently asked questions
How do I find my screen resolution?
This page shows it at the top. It is also in your system settings: Display settings on Windows, or System Settings › Displays on a Mac.
Why does it show less than my monitor’s resolution?
Browsers report screens in CSS pixels. With 150% scaling, a 2560 × 1440 monitor reports as 1707 × 960. The physical resolution, size times pixel ratio, gives the real figure.
What is device pixel ratio?
How many physical pixels make up one CSS pixel. It is 1 on many desktop monitors, 2 on most Retina Macs and 3 on many phones. Zooming the page changes it too.
What aspect ratio is 1366 × 768?
About 16:9. Exactly, it is 683:384, but it is sold and treated as a 16:9 screen. 1920 × 1080 and 2560 × 1440 are exactly 16:9.
What is the difference between screen size and window size?
Screen size is the whole display. Window size is the area the page can use inside the browser, which is smaller and changes as you resize.
Does it show the resolution of a second monitor?
It shows the screen the browser window is on. Move the window to the other monitor and the values update.