21:9 Aspect Ratio

The 21:9 aspect ratio is used for ultrawide monitors, cinematic content, and panoramic displays. It provides a wider field of view than standard 16:9 screens.

21:9 Dimension Calculator

I know the:

Visual Preview

21:9
Decimal: 2.3333

Common 21:9 Resolutions

NameWidthHeightTotal Pixels
5K Ultrawide5120216011,059,200
UWQHD+384016006,144,000
UWQHD344014404,953,600
UWHD256010802,764,800
21:9 FHD252010802,721,600
21:9 HD16807201,209,600

About the 21:9 Aspect Ratio

The 21:9 ratio (2.333:1) is commonly called "ultrawide" and closely approximates the cinematic widescreen format used in movie theaters. Ultrawide monitors with 21:9 ratios have become popular for gaming, video editing, and productivity.

The most popular 21:9 resolution is 3440 x 1440 (UWQHD), which offers a significant increase in horizontal workspace over standard 2560 x 1440 monitors. Many films are shot in similar formats like 2.39:1 (anamorphic widescreen).

Where 21:9 Is Used

  • Ultrawide gaming monitors
  • Video editing and content creation
  • Multitasking and productivity setups
  • Cinema and theatrical film projection
  • Panoramic photography and displays