MonitorsWindows · monitor

27″ QHD 2560×1440 viewport size

2560 × 1440CSS px · 1× DPR · 2560×1440 physical

By default the 27″ QHD 2560×1440 gives a full-screen web page a 2560 × 1440 CSS pixel viewport, drawn on a 2560 × 1440 pixel panel (device pixel ratio 1). That’s the size your media queries see, and it changes if the owner picks a different scaling option (listed below).

CSS viewport (portrait)2560 × 1440what web pages get

Aspect ratio16:9width : height

Device pixel ratio1×1 CSS px = 1 × 1 screen pixels

Physical resolution2560 × 144027″ screen

Visible in the browser2560 × 1305Chrome (Windows 11), first load

Released–Windows monitor

See your site on a 27″ QHD 2560×1440

Paste your address (or localhost:3000). doesitfit shows it at exactly 2560 × 1440, with Chrome (Windows 11)’s bars if you want them, and tells you if anything spills.

Free, no sign-up. Or ask Claude, ChatGPT or Codex to check it.

What a web page actually sees

The full viewport is 2560 × 1440, but the browser’s own bars take some of it. In Chrome (Windows 11) a page gets about 2560 × 1305 on first load (Chrome’s 87px tab strip + toolbar and the 48px Windows 11 taskbar, maximized window). That’s your real “above the fold”.

Setting	Width	Height
Full viewport	2560px	1440px
Visible on first load (Chrome (Windows 11))	2560px	1305px

What it means for your CSS

Breakpoints

At 2560px: Tailwind uses 2xl (sm: md: lg: xl: 2xl: styles apply); Bootstrap uses xxl.

Tailwind breakpoints on real devices

Content width

With 16px of padding on each side your text column is 2528px; with 24px it’s 2512px. Text closer than 8px to the edge looks cramped (more).

Sharp images

A full-width image needs about 2560px of real pixels (2560 × 1).

<img src="hero-2560.jpg"
  srcset="hero-800.jpg 800w, hero-2560.jpg 2560w"
  sizes="100vw" alt="…">

Styles for this width

Content-first breakpoints beat device lists, but if something breaks at this width:

@media (max-width: 2560px) {
  /* screens 2560px wide and narrower */
}

Other display size settings

The scaling the owner picks changes the viewport your site gets:

Setting	CSS viewport	DPR
100% (default)	2560 × 1440	1
125%	2048 × 1152	1.25

How common is 2560 × 1440?

2560 × 1440 is the #5 most common desktop screen size worldwide, with 2.48% of desktop traffic (Aug 2026, StatCounter).

Same viewport:

Compare:

24″ Full HD 1920×1080 vs 27″ QHD 2560×1440

Everything about the 2560 × 1440 viewport · All devices 2560px wide · All Monitors sizes

Questions people ask

What is the viewport size of the 27″ QHD 2560×1440?

2560 × 1440 CSS pixels, with a device pixel ratio of 1. The screen itself is 2560 × 1440 physical pixels.

How much of the 27″ QHD 2560×1440 screen does a web page get in Chrome?

About 2560 × 1305 on first load: the Chrome’s 87px tab strip + toolbar and the 48px Windows 11 taskbar, maximized window. Design your first screen for that height, not the full 1440px.

Which CSS breakpoint does the 27″ QHD 2560×1440 fall into?

At 2560px wide, Tailwind CSS uses 2xl (sm: md: lg: xl: 2xl: styles apply) and Bootstrap uses its xxl tier.

How wide should images be for the 27″ QHD 2560×1440?

A full-width image needs about 2560px of real pixels (2560 CSS px × DPR 1) to look sharp. Use srcset so smaller screens don’t download it.

How can I test my website on a 27″ QHD 2560×1440 without one?

Open doesitfit.lol, paste your address (localhost works too) and pick the 27″ QHD 2560×1440. It shows your site at exactly 2560 × 1440 CSS pixels and flags anything that spills past the edge.

Guides that help

About these numbers

Confidence: High: confirmed by more than one independent source. Windows picks a “recommended” scale per panel and manufacturers often override it; Chrome rounds fractional sizes up (2560×1600 at 150% → 1707×1067).

Sources include DeviceAtlas, Chrome DevTools device list (EmulatedDevices.ts), iosref.com, ios-resolution.com. Researched September 2026.