Full Screen Video Converter Windows10

Convert a Video to Full Screen - Make full screen MP4 DivX video for Mobile Phone, Cell Phone or other devices on Windows PC

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Full Screen Video Converter Windows10

In this tutorial, I will show you how to convert MP4 or other video formats to full screen size with the Easiest Video Converter for Windows

Find out the resolution of your device

For Windows 10 PC, press the Window key and enter display settings

Open Display settings in Windows 10

As you can see from the image below, the display resolution of my Win 10 PC is 1920 x 1080:

Find out resolution in Windows 10 in display settings

Generally, you can find the the resolution in the mobile device's Setting, My device:

Find out the resolution of your mobile phone

The resolution of the above mobile phone is also 1920 x 1080

Understanding video Aspect Ratio

The aspect ratio is a ratio of video width to the height

There are basically two aspect ratios:

  • 16:9 (also called 1.78, because 16 divided by 9 = 1.78)
  • 4:3 (also written as 1.33, because 4 divided by 3 = 1.33)

Every single digital media resolution is based on the 16:9 aspect ratio

99% of the time, you’ll use the 16:9 aspect ratio when converting a video to full screen size

16:9 aspect ratio Video Resolutions(px):

  • 4K UHD: 3840 x 2160
  • 2K Video: 2560 x 1440
  • 1080p HD: 1920 x 1080
  • 720p HD: 1280 x 720
  • Standard Definition (SD): 640 x 360

My PC and cell phone have a screen size of 1920 x 1080, which is an aspect ratio of 16:9

If the aspect ratio of the video is 16:9, I can play the video in full screen on my Windows PC, buy what about my mobile phone?

The difference between a mobile phone and a PC is that the mobile phone can play videos horizontally or vertically, which means that the aspect ratio of the mobile phone video can be 16:9 (horizontal) or 9:16 (vertical)

When I want to paly a video in full screen on my PC, I should convert it to a 16:9 aspect ratio. Sample resolutions are:

  • 3840 x 2160
  • 2560 x 1440
  • 1920 x 1080
  • 1280 x 720
  • 640 x 360

And When I want to paly a video in full screen on my mobile phone, I should convert it to a 16:9 or 9:16 aspect ratio. Sample resolutions are:

16:9 ------------------- 9:16

  • 3840 x 2160 - 2160 x 3840
  • 2560 x 1440 -1440 x 2560
  • 1920 x 1080 - 1080 x 1920
  • 1280 x 720 - 720 x 1280
  • 640 x 360 - 360 x 640

How do I know if the aspect ratio of my video is 16:9 or 9:16

If you know the resolution of the video and it's in the list above, its aspect ratio is 16:9 or 9:16

You can get the aspect ratio of any video by following steps:

  1. To check the video resolution in Windows 10:

    • Right click on a video, select Properties

    • Select Details tab

      Check Video Resolution in Windows 10

      Frame width: 800, frame height: 532, the resolution is 800 x 532, is it aspect ratio 16:9?

  2. Calculate video aspect ratio

    Divide the larger value of width or height by the smaller value, it is aspect ratio 16:9 or 9:16 if the result is 1.78

    800 divided by 532 = 1.5, this is not a 16: 9 video, which means it is not a full-screen size video of my PC and cell phone

When you want to convert a media to full screen size, there are two cases:

  • The aspect ratio of the video is already 16:9 or 9:16, but the orientation is incorrect, in this case, we can convert and rotate it to the correct orientation

  • The aspect ratio of the video is not 16:9 or 9:16, in which case we can convert and crop it to 16:9 or 9:16 resolution

How to Convert and rotate MP4 Video to full screen size on Win PC

I have a MP4 video with a resolution of 720 x 1280 (9:16), the orientation is not correct, I want to play it full screen on my PC

The full screen video on my PC should have a 16:9 aspect ratio, and I can use Easiest Video Converter to rotate it to a 16:9 aspect ratio

How to Convert Rotate MP4 video to full Screen on Windows using Easiest Video Converter

  1. Click Add Files to load MP4 video

  2. Set Output Format

    1. Click Output Format box

    2. Enter keep in Search Format box and select Keep Original Video Format

      Set Output Video Format to Keep original video format in Easiest Video Converter for Windows

  3. MP4 Video Rotation

    • Click the imported .mp4 video to select it

    • Click Rotation on toolbar

      Rotate MP4 video in Easiest Video Converter Editor for Windows

    1. Select a rotate angle and OK
  4. Click Start to start converting .mp4 extension file to full screen

  5. Open Output when done to check the result

How to convert crop MP4 video to full screen size on Windows PC

I have a video called EasiestSoft.mp4 with a resolution of 800 x 532 and an aspect ratio of 1.5 instead of 1.78 (16:9). There are two ways to change its aspect ratio to 1.78(16:9):

  1. video height 532 x 1.78 = video width 947, increase the video width to 947 px
  2. video width 800 divided by 1.78 = video height 450, crop the video height to 450 px

We can't actually increase the width of the video, but we can crop the video height to 450 px using Easiest Video Converter for Windows

532 - 450 = 82, we will crop 82 pixels of video height

The new video resolution will be 800 x 450

  1. Add Files

  2. Choose Output Format

    1. Click Output Format box
    2. Enter keep in Search Format box
    3. Select Keep Original Video Format from the list Set Output Video Format to Keep original video format in Easiest Video Converter for Windows
  3. Hit Crop in toolbar

    Crop MP4 file to 16:9 full screen video with Easies Video Converter for Windows

    • Crop 82 pixels from bottom of video height
    • OK
  4. Hist Start button

  5. Open Output

Now I can play the resulting video EasiestSoft.mp4 in full-screen size on my Windows 10 PC or smart phone

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