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Step by Step to Resize Video in Davinci Resolve

Liza Brown
Liza Brown
Originally published Mar 11, 22, updated May 20, 24

While editing videos, you may change the aspect ratio of the video to change the size of the video to upload on different platforms like YouTube, Facebook, Pinterest, and Instagram. Videos come in different sizes and shapes. Some videos are portraits while the others are landscapes. Similarly, videos are captured in different places with different devices. So, we need to set a certain size of the video.

Definitely, a very large video can make delays in the work, similarly, a small size video can result in low resolution and bad quality. Resizing a video saves a lot of time and money whether you have a business, a YouTube channel, a short film, or a feature film. Today, we shall discuss how to resize the videos?

The two free ways to resize the video…

Here are a number of tools used in the market to resize the videos. We are going to teach How to resize the video in Davinci resolve and Fimora wondershare. Once you have mastered How to resize a video, it would be as simple as the ‘click’.

Now the good news is, you can dramatically export the videos in the same resolution in a very short time.

Let’s dive in!

Part 1. How to resize video in Davinci Resolve

Davinci Resolve is a very powerful tool to edit videos. Let’s suppose, you have some videos shots and all the videos have different sizes, some of the videos fit in the timeline and some are out of the timeline. No matter, you are going to make a video on the same scale with the same size.

Resize the video can be done in three ways:

  1. Zoom in zoom out
  2. Cropping
  3. Retime and scaling

1. Zoom in and Zoom out

First of all, select the videos in your timeline. You should stay in the middle of the frame to set it because it’s too wide. The timeline moves forward and backward. Let your video be 4k, go to the bottom-right corner and click on timeline format. Select timeline resolution, select ultra HD, or whatever you want from the drop-down list.


Go to the inspector from the up-right corner and select Transform under the video section. Here you can resize your image. Place the mouse over zoomx (Horizontal) and zoomy (vertical) values to drag left or right for zoom in or zoom out. The video can be resized accordingly.

Here you can also change its rotation.


2. Cropping

Go to the inspector from the up-right corner and select Transform. Now choose Cropping. Here are four options Crop left, crop right, crop Bottom, and crop Top. You can drag the scale from left to right to adjust the crop settings according to the desired result.


3. Retime and scaling

Go to the inspector from the up-right corner and select retime and scaling. You can choose stretch, Fit, Fill, or crop for cropping the video from the drop-down list.

  • The Crop function is used to remove the unnecessary or uneven part of the video.
  • The Fit function is to have the video auto-center and the selected clips are formatted according to the screen dimensions.
  • Stretch Function allows changing the length of the certain clip at a certain duration.

After transforming, cropping, and resizing the videos, you can copy the same settings without repeating the above steps for each video.

Part 2. An alternative way to resize videos with Wondershare

Filmora Video Editor is another great video editing software. It is very easy to use. It offers many different features to resize the videos. Moreover, it allows zooming in the video to highlight the best part of your video. It allows the edited video to export on other devices or YouTube channels.

Free Download

For Win 7 or later (64-bit)

Free Download

For macOS 10.14 or later

You can resize your video in three ways:

  1. Resize video by cropping
  2. Scale in Scale-out
  3. Resize by changing Aspect Ratio

1. Resize video by cropping

  • Import the videos from your storage by using the import button.
  • Drag the videos in the timeline.
  • Right-click on the desired video, crop and zoom option will appear in the menu.
  • Select crop tab.
  • Grab the corner of the crop inwards, and move to adjust as desired.
  • Press the OK tab and your video is cropped.

2. Scale-in and scale-out

  • Select the video in the timeline.
  • Select the settings
  • Click on the Transform tab under image section.
  • Move the pointer from left to right on the Scale to zoom in and zoom out the video. You can remove the unwanted portion of the video.
  • Press OK tab.

3. Resize video by changing aspect ratio

Some videos are 4k, 6k, and 8k but exporting them in the same resolution and waiting for a long time is really difficult. You need to resize the video to change its width and height. As different social media platforms require a different sizes for videos. We can say, resizing the video in terms of Giga bites and mega bites. You can do it by changing the Project Aspect Ratio. It is a very powerful technique to resize the videos in the timeline.

You can change the Project Aspect ratio like 16:9(wide-screen), 1:1(Instagram), 9:16(Portrait), 4:3(standard), 21:9(Cinema), or custom.

  • Select the Aspect Ratio
  • Change the ratio 16:9, 1:1, 9:16, 4:3, 21:9, or custom as desired.
  • Select OK.


At this time, every business is using marketing to boost the economy, but video marketing is at its climax. Therefore, it is essential to take advantage of video editing tools to increase productivity and efficiency of work.

The Davinci Resolve and Filmora Wonder Share are the best video editing tools to resize the videos. You can easily use these tools on your laptop, tablets, or smartphones in a very short time. Along with this, you can share your compressed videos on different social media platforms like Facebook, Twitter, YouTube, Instagram, and LinkedIn. Moreover, you can enjoy the magical effects of these free tools at the ease of your smartphone. It is beneficial at both small and large businesses for the following

  • Time saver
  • Economical
  • Good video quality
  • Presentable
  • Increase engagement

Hope the content would be useful for you. If you like the article please leave a comment.

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