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2020 Best YouTube Video Size: Perfect Dimensions, Resolution, Aspect Ratio

Last Updated: Sep. 13, 2021

Summary: This blog shows you what exactly right YouTube video size includes, and how to change the dimension, aspect ratio, resolution and YouTube image size to get your perfect YouTube video size!


Image board: Best YouTube Video Size: Dimension, Resolution, Aspect Ratio

YouTube is definitely king of online video platform. So how to get more followers and maximum your opportunity on YouTube? The first significant thing is that you need to use the right YouTube video size to give your viewers best viewing experience.

Part 1: YouTube Video Size: Right Resolution

When you decide to manage your YouTube Channel, correcting your YouTube resolution can maximum your brand-promotion for search optimization.

YouTube recommended 7 resolutions for videos. but which is the best resolution for YouTube video size?


Image board: YouTube Video Size: YouTube Resolutions

4k devices are not widely used for most individuals, so although it has the highest performance, we recommend 1080p as your YouTube video size, which can perform on any 1080+ hardware screen and give you a very professional visuality.

1080p is the most popular playing video quality on YouTube, this is also one of reason why we recommend 1080p as your YouTube video resolution.


Image board: YouTube Playing Video Quality

We make an image to show you all of them in one illustration. You can see how many 240p fit within 1080p high definition dimension.


Image board: Differences between YouTube Resolutions

How to Change YouTube Video Quality and Resolution

FlexClip video converter can help you change your video quality and resolution with only 3 easy steps. Upload video > Select 1080p resolution and high quality > Export


Image board: Change YouTube video resolution and quality by FlexClip video converter

How to Change YouTube Video Quality When Watching Videos

1.Tab YouTube 'settings wheel' on the right bottom of video screen.

2.Click on ‘Quality’ to choose best YouTube video size and quality for better viewing experience.

3.Choose the video resolution you want.

Depict video: Change YouTube Video Quality When Watching Videos

Part 2: YouTube Video Size: Right Aspect Ratio

What does 1:1, 9:16 and 16:9 aspect ratios mean? Which is the best for YouTube videos? Here’s a quick breakdown!

1:1 aspect ratio: This is perfect square for Instagram video.

9:16 aspect ratio: this is vertical view, perfect for your IGTV and Instagram TV.

16:9: aspect ratio: This is default aspect ratio of YouTube. 16:9, the new standard for videos, is the landscape view. Professional videos are now made in 16:9.


Image board: Choose right aspect ratio for perfect YouTube video size((Source from:

For YouTube, the right aspect ratio is 16:9, even on Mobile devices, it’s default to play in 16:9. There are some vertical ratio 9:16 / 4:3 videos on YouTube, too, but they are added black bars on two sides. So, for getting better viewing experience, the 16:9 is recommended.


Image board: Bad YouTube video size: 9:16 vertical vision

How to Change Video Aspect Ratio for YouTube?

FlexClip video editor can change video aspect ratio easily and quickly. Just upload your video clips to FlexClip, and then go to ‘setting wheel’ to change the aspect ratio for right YouTube video size. Last, export the new video in 16:9.


Image board: Change aspect ratio for right YouTube video size

Part 3: YouTube Video Size: Right Formats

YouTube videos accepted the following video formats:

.mov, .mp4, .avi, .mpeg, .wmv, mpegps, .flv, .webm and 3gpp

Maximum file size: 128GB

Maximum video length: 12hours

As you can see, YouTube accepted many videos in different formats, but if your video format is still not supported, you can try FlexClip video converter to change the format (MP4,MOV,M4V,AVI,WMV,FLV,MKV etc.) to mp4 or webm.


Image board: Get right video format by FlexClip video converter

Part 4: YouTube Video Size: Right Video Image Size

The Best YouTube Banner Size And Thumbnail size

The recommended size of YouTube Channel Cover is 2560 x 1440 pixels, and for YouTube video thumbnail, the recommended size is 1280 x 720 pixels.


Image board: Right YouTube Channel Cover for perfect YouTube video size

Don’t worry to make a YouTube Channel Cover or Thumbnail, DesignCap online graphic designer provides you thousands of YouTube channel cover templates and YouTube thumbnail templates to inspire your minds.

Come to try it for free!


Image board: Right YouTube thumbnail for perfect YouTube video size

Bottom Line

Come to join in FlexClip video converter, DesignCap graphic designer and free video editor to get the right video resolution, aspect ratio, video format, YouTube channel cover and thumbnail size, and high video quality to make the perfect YouTube video size!

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