Convert, edit, and compress videos/audios in 1000+ formats with high quality.
Introduction of the 4:3 Aspect Ratio and Ways to Change it
Posted by Aira Lesly Escoto to Edit Video/Audio Sep 02, 2025
Early television and film works typically used a 4:3 screen ratio to display more explicit images in a limited pixel condition. If you want to convert your current video to a 4:3 ratio, what is the simplest way to do so without affecting the original quality of the video? Read on to learn everything you need to know about 4:3 screen ratios and specific methods for changing screen ratios.
Guide List
Definition and Features of 4:3 Aspect Ratio The 4:3 Aspect Ratio Common and Uncommon Resolution Professionally Change Aspect Ratio to 4:3 without Quality Loss Change the Aspect Ratio to 4:3 Quickly with OnlineConverter Use Clideo to Change Aspect Ratio to 4:3 Online EasilyDefinition and Features of 4:3 Aspect Ratio
The aspect ratio represents the proportions of an image or screen. By definition, it refers to the relationship between width and height. 4:3 aspect ratio is the traditional television standard, with an overall picture that is close to square. It makes good use of pixel resources in the era of low resolution, ensuring clear images and suitability for displaying vertical information.
In contrast, 16:9 is more in line with the human eye's horizontal field of vision, providing a stronger sense of immersion. Therefore, the 4:3 aspect ratio is used in many traditional televisions, CRT displays, and surveillance equipment.
Features
1. Suitable for displaying traditional content
Old TV shows, DVDs, surveillance videos, and most film and television materials shot in the last century are 4:3.
2. Convenient for multitasking split screens
The higher vertical space allows for displaying more content, making it suitable for writing, programming, or opening multiple windows simultaneously.
3. Office and reading friendly
With the same diagonal size, the vertical space is larger than 16:9, which is more conducive to reading documents, tables, and web pages.
The 4:3 Aspect Ratio Common and Uncommon Resolution
| Resolution (px) | Name / Alias | Usage |
| 320 × 240 | QVGA | Rare (handheld devices, industrial equipment) |
| 400 × 300 | — | Rare |
| 512 × 384 | — | Rare |
| 640 × 480 | VGA | Common (early monitors, TVs) |
| 800 × 600 | 800 × 600 | Common (old PCs, projectors) |
| 1024 × 768 | XGA | Common (office projectors, monitors) |
| 1152 × 864 | — | Rare |
| 1280 × 960 | SXGA- | Common (monitors) |
| 1400 × 1050 | SXGA+ | Common (some laptops, monitors) |
| 1600 × 1200 | UXGA | Common (high-end monitors, image processing) |
| 1792 × 1344 | — | Rare |
| 2048 × 1536 | QXGA | Rare (high-end research/industrial) |
Professionally Change Aspect Ratio to 4:3 without Quality Loss
When a 4:3 aspect ratio video is uploaded to social media platforms, black bars appear on the left and right sides, which can be quite distracting. You can use 4Easysoft Total Video Converter to change the video aspect ratio to 4:3,16:9 or other ratios. It does not compress video quality, and you can customize the frame rate and bit rate to optimize the video. It also comes with a range of editing tools, such as cropping, rotating, filters, transitions, etc., allowing you to edit videos in one stop.
Adjust the 4:3 aspect ratio to other ratios freely without affecting video quality.
GPU acceleration allows even large video files to be converted at 10x speed.
Support cropping, reversing, and other editing functions for video refinement.
Customize frame rate, decoding rate, audio sampling rate, etc., for better personalization.
100% Secure
100% Secure
Step 1Determine the aspect ratio to be converted, launch the software and click "Add Files" to upload your video.
Step 2Click "Edit" below the video to cut the 4:3 aspect ratio. You can cut freely in "Freely" mode or choose another fixed aspect ratio.
Step 3Click "OK" and "Convert All" to save the video. If you want to edit the video more, the top bar has more editing functions, such as effects and watermarks.
Change the Aspect Ratio to 4:3 Quickly with OnlineConverter
If you want to change the 4:3 aspect ratio quickly, you can use an online tool, Online Converter. It can be accessed via any device with a browser and supports multiple file formats. However, it can’t guarantee the quality of your videos after changing to a 4:3 aspect ratio. Its performance depends on an internet connection. Video upload and download times depend on the file size and the bandwidth of the internet connection. Additionally, OnlineConverter imposes a 200MB file size limit for video uploads.
Step 1Visit the OnlineConverter official website and click "Select Video" to upload the video you want to change.
Step 2Choose a fixed or type the detailed aspect ratio you want, and click "Convert". Then, the video will be downloaded to your computer.
Use Clideo to Change Aspect Ratio to 4:3 Online Easily
Clideo is another practical and simple online tool for changing the 4:3 aspect ratio. It offers preset aspect ratios like Instagram and various social media platforms, allowing you to import videos and apply them directly. You can also customize the video aspect ratio values. Additionally, it supports rotating, cropping, and converting videos, as well as various video formats. However, it uploads high-definition videos slowly, and adjusting the aspect ratio may result in a loss of video quality.
Step 1Visit the official website, click "Choose Files" and upload your video need to change the aspect ratio.
Step 2Wait for the upload to complete, and then click the two options below "Resize to Fit" to adjust the 4:3 aspect ratio.
Step 3You can change the output format and other video settings below the templates. Then click "Export" to save the result.
Conclusion
The 4:3 aspect ratio remains widely compatible and playable across multiple devices. The methods outlined in this article enable efficient and rapid conversion of video footage to the 4:3 aspect ratio. But they may not keep the original quality. If you require guaranteed quality and use more editing functions, 4Easysoft Total Video Converter is your optimal choice. It encompasses most essential video editing functions while ensuring high-quality output and optimal viewing experience during 4:3 conversion. Download it now to transform your video to the 4:3 aspect ratio.
100% Secure
100% Secure
