Published: May 21, 2024 | Last Updated: November 19, 2025
What is a 4:3 Ratio? Definition & Meaning
A 4:3 aspect ratio, also known as 1.33:1, is a screen dimension where the width of the display is 4 units, and the height is 3 units. This ratio has a long history in film and television, tracing its origins back to the early days of cinema and the golden age of television. The 4:3 aspect ratio is also known as the standard aspect ratio because of its widespread use before widescreen formats.
Technical Specifications
- Resolution Compatibility: Common 4:3 resolutions include 640×480 (VGA), 800×600 (SVGA), and 1024×768 (XGA).
- Field of View: The 4:3 aspect ratio provides a relatively square frame, influencing the composition and framing of visual content.
- Projectors: Many older and modern projectors still support the 4:3 ratio, especially in educational and business environments.
Historical Background
The 4:3 aspect ratio emerged with the early developments in cinema and television.
While creating the Kinetoscope in the late 19th century, Thomas Edison and William Kennedy Laurie Dickson selected this ratio because it matched the dimensions of 35mm film stock, which was 1.33 times wider than it was tall.
This choice made it compatible with the existing film technology and set the standard for years.
Adoption in Television
As television entered the scene in the 20th century, the 4:3 aspect ratio became the standard. Early TV technology adapted easily to this format, aligning with the aspect ratio of existing film libraries. NTSC in the United States and PAL in Europe standardized this aspect ratio for broadcast TV.
Shift to Widescreen
The late 20th century saw a shift towards widescreen formats. The rise of the 16:9 aspect ratio in TVs and modern films made the 4:3 aspect ratio less prevalent.
The format shift was not without problems, with pan-and-scan conversions causing letterboxing. Despite this, the 4:3 ratio remains significant in visual media history.
Modern Examples of 4:3 in Film
Despite the widescreen trend, some modern filmmakers choose the 4:3 aspect ratio for artistic reasons. Notable films using this ratio include:
- The Grand Budapest Hotel (2014) by Wes Anderson uses 4:3 for scenes set in the 1930s to evoke a period feel.
- First Reformed (2017) by Paul Schrader uses the aspect ratio to create a sense of confinement and introspection.
- Zack Snyder’s Justice League (2021) is the first modern (i.e., post-widescreen) superhero blockbuster movie to use 4:3 to avoid shifting aspect ratios for home cinema and preserve some of his creative vision from the IMAX theatre.
Summing Up
The 4:3 aspect ratio has played a key role in the evolution of both cinema and television.
Although widescreen formats have largely taken over, the 4:3 ratio still influences specific artistic and creative visions and technical purposes.
Read Next: Wondering how aspect ratios shape storytelling?
Dive into our Screen Formats section to see how widescreen, Academy ratio, and IMAX influence the way we watch movies.
Looking for more historical context? Explore our Film History, Theory & Genre archive for visual storytelling across time and technology.
