Standard • DESKTOP • 27" - 43"
Desktop 4K Ultra HD Viewport Size & CSS Resolution
4K Ultra HD offers 3840 x 2160 native resolution. When run at 150% or 200% OS scaling, effective CSS viewports range between 1920px and 2560px. Use the interactive simulator and verified CSS media queries below for pixel-perfect responsive frontends.
CSS Viewport3840 × 2160px logical
Physical Screen3840 × 2160px native
Device Pixel Ratio1× DPRRetina scale
Aspect Ratio16:927" - 43"
Brand & YearStandardReleased 2023
Tailwind Tier2xl2xl (>= 1536px)
Interactive Display Canvas Simulator
Simulates Desktop 4K Ultra HD canvas proportion (3840 × 2160 CSS px)
9:41100%
Desktop 4K Ultra HD3840 × 2160 px
DPR: 1x
16:9
Responsive Viewport
Ready-to-Use Developer Snippets
@media screen and (min-width: 3840px)
Frontend Design Best Practices
- Ensure high-resolution @2x and @3x image assets are served via srcset.
- Check that fixed-size elements (e.g. 1px borders) do not vanish or render too thin.
CSS Viewport Specification
CSS Logical Width3840 px
CSS Logical Height2160 px
Hardware Native Width3840 px
Hardware Native Height2160 px
Pixel Density (DPR)1×
Aspect Ratio16:9
Frequently Asked Questions About Desktop 4K Ultra HD Screen Dimensions
Frequently Asked Questions
Frequently Asked Questions
Everything you need to know regarding specifications, syntax, and security best practices.
Most operating systems (macOS, Windows) apply 150% or 200% DPI scaling to 4K monitors, translating to 2560x1440 or 1920x1080 effective CSS pixels with DPR 1.5 or 2.0.