"Is there any way to change the aspect ratio of a video I downloaded from 16:9 to 4:3?"

"How can I convert aspect ratio of an AVI video into 16:9 for finely playing on my widescreen TV?"

If you are suffering from false aspect ratio issues same as these two mentioned above, you've come to the right place. Just as we know, different media players, portable devices or TVs support different aspect ratio of video. Therefore, to make the display effect better fitted, we need a powerful aspect ratio video converter.

Part 1. Easy Way to Change Aspect Ratio of Video Files

To change the aspect ratio permanently is not difficult if you use this upscale program - VideoSolo Video Converter Ultimate. It can help you adjust video aspect ratio among 4:3, 16:9, etc. in almost all formats, including AVI, FLV, MP4, M4V, MKV, MOV, 3GP, 3G2, SWF, WMV, ASF and more.


With the built-in hardware acceleration technology and video enhancer, you can totally trust the conversion speed and output quality. Besides, this converter empowers you to preview video effect in real time and personalize your videos with powerful editing features. The following is an easy 3-step-guide on how to change and adjust video aspect ratio with the help of VideoSolo Video Converter Ultimate.

Step 1. Import Video Files

After downloading, installing and launching the converter on your Mac or PC, either click the "Add Files" button or simply use drag and drop to load your target videos which you like to change aspect ratio.

Add Files

Step 2. Change Video Aspect Ratio

Now head to the main interface and click "Edit". The settings panel pops up. Then hit "Crop" tab and you can click "Keep Aspect Ratio" to choose one proper size (Original, 16:9, 4:3 etc.) from the options below.

Change Aspect Ratio

Here you can convert a video from 4:3 aspect ratio to 16:9 aspect ratio for widescreen. After choosing 16:9 aspect ratio, you can preview the source video in 16:9 in the built-in media player with the media converter program. Then click "Apply" button.


The same way can also apply to change 16:9 aspect ratio to 4:3 aspect ratio. Import your 16:9 aspect ratio video and go to "Keep Aspect Ratio" column, select 4:3 and apply it.


Tip: If you want to change the position of your video, set a value for its Left Margin and Top Margin. Lastly, choose one Zoom Mode for the video refers to its crop size area.

Step 3. Start Converting to Change Right Aspect Ratio

Optionally, you can select preferable video format as output profile and set destination folder. Then click the "Convert" button to start and finish changing aspect ratio for your movie files.

Converting Video

Part 2. What is the Aspect Ratio and Why Do We Have to Change It

Aspect ratio is generally known as the proportion between width and height of a picture and video. It is commonly expressed as two numbers separated by a colon, such as 4:3, 16:9, 18:9 and etc.


Common aspect ratios:

4:3 (1.3:1) is for standard television has been in use since the invention of moving picture cameras and many computer monitors used to employ the same aspect ratio. 4:3 was the aspect ratio used for 35 mm films in the silent era. It is also very close to the 1.375:1 Academy ratio, defined by the Academy of Motion Picture Arts and Sciences as a standard after the advent of optical sound-on-film.


16:9 (1.78:1) is the international standard format of HDTV, non-HD digital television and analog widescreen television PALplus. Many digital video cameras have the capability to record in 16:9, and 16:9 is the only widescreen aspect ratio natively supported by the DVD standard. DVD producers can also choose to show even wider ratios such as 1.85:1 and 2.39:1 within the 16:9 DVD frame by hard matting or adding black bars within the image itself. However, it was used often in British TVs in the United Kingdom in the 1990s before the 21st century.


18:9 (2:1) is designed to be a compromise between the cinema 2.39:1 aspect ratio and the HD-TV broadcast 16:9 ratio. Some mobile devices, such as the LG G6, LG V30, Huawei Mate 10 Pro, Google Pixel 2 XL and OnePlus 5T, are embracing the 18:9 format, as well as the Samsung Galaxy S8, Samsung Galaxy Note 8, Samsung Galaxy S9 and Samsung Galaxy Note 9 with an 18.5:9 format. The Apple iPhone X also has a similar screen ratio of 19.5:9 (2.16:1).


21:9 (7:3) is most commonly seen on higher end monitors, and are commonly called UltraWide monitors.


Now we know the most common aspect ratios. If the aspect ratio doesn't fit your media player screen perfectly, you can see some black bars on both sides or at top and bottom. It will really have a negative effect on enjoying high quality resources.


If you want to get better display effect, you need a powerful video aspect ratio changer to help you recalibrate to its most appropriate video ratio for your devices. Just try VideoSolo Video Converter Ultimate, it will give you plenty of options to play with and can really expand your video arsenal.