Best YouTube Video Specs for Uploading

Got some problems uploading videos to YouTube? You will probably find the root cause and related solutions in this article.

by Kevincy

Updated on Jul 29, 2021

YouTube Video Uploading

YouTube Video Uploading

Q: I made a video in Windows Movie Maker, and it's saved as a WMV file. When I try to upload it, there is the "length of video too long" error. What's wrong? Do I have to terminate the uploading attempt or is there a remedy for this?

Q: When I make a video and upload it to YouTube in 720P HD, I get these black bars surrounding my video, if you know what I mean. My video isn't full screen. Meanwhile, some YouTube videos have no sound. How do I fix the problems?

Q: What is the best file type to suit YouTube? MP4? WMV? AVI? FLV? Which one has the best conversion rate and ends up with a better looking video even after upload?

As the largest video-sharing website in the world, YouTube enjoys absolute predominance in today’s media landscape. Millions of people watch videos, register accounts and upload videos to YouTube every day. Although the video upload process is quite straightforward, they are still confronted with different problems. Luckily, here are something you should know about YouTube video specs for uploading.

Break the Limit for 15 Minutes Video Upload

Unverified users are restricted to upload videos with a maximum 15 length. That's why some people get the "length of video too long" error. You can alternatively cut the video into several clips to solve the problem. To upload videos longer than 15 minutes, go to "" page and follow the steps to verify your account. You can upload videos longer than 15 minutes after done. Below are some detailed YouTube upload requirements, check it out.

15 Minutes Long Video Limit for Unverified User

15 Minutes Long Video Limit for Unverified User

Best Aspect Ratio for YouTube

The best aspect ratio for YouTube is 16:9. If you're uploading a non-16:9 file, it will be displayed with pillarboxes (black bars on the left and right) or letterboxes (black bars on the top and at the bottom) in YouTube player.

Videos with Pillarboxes and Letterboxes

Videos with Pillarboxes and Letterboxes

Best Resolution for YouTube

You are supposed to change resolution to one of the following best resolutions for YouTube video to fit the player perfectly.

2160P: 3840x2160

1440P: 2560x1440

1080P: 1920x1080

720P: 1280x720

480P: 854x480

360P: 640x360

240P: 426x240

Best Format for YouTube

If you receive an error message like "invalid file format" while uploading videos, make sure that you're using one of the following formats: MOV, MPEG4, MP4, AVI, WMV, MPEGPS, FLV, 3GPP, WebM, DNxHR, ProRes, CineForm, HEVC (h265). However, some videos won’t be uploaded successfully even though it is one of the supported format above. It is probably caused by the codec or other encoding settings. Go ahead and keep reading. As for the YouTube preferred video format, YouTube states that the best format for YouTube to use is MP4 (standard, HD and Ultra HD 4K quality). Some 4K video editors or best free video converters will be helpful if your video formats are excluded.

Best Codec for YouTube

Video codec: H.264

Audio codec: AAC-LC (Channels: Stereo or Stereo + 5.1, Sample rate 96khz or 48khz)

Best Frame Rate for YouTube

Keep the original frame rate when you upload recorded videos to YouTube. Common frame rates are 24, 25, 30, 48, 50, 60 frames per second. And interlaced content should be deinterlaced before uploading.

Best Video Size for YouTube

As for the YouTube video size for uploading, you are allowed to upload files larger than 20GB with an up-to-date version of your browser. The maximum file size you can upload to YouTube is 128GB. Try splitting video or compressing video before uploading a video larger than 128GB.

Recommended Bitrate and Frame Rate for Video and Audio

Refer to the form below on bitrate and frame rate recommendations for different resolutions.

Recommended Bitrate and Frame Rate

Recommended Bitrate and Frame Rate

How to Customize Video to Fit the Best YouTube Video Specs

For better display with high quality, stick to the recommended YouTube upload specs above for uploading. If you're a beginner and have no experience in adjusting related parameters, this handy and professional program - WonderFox HD Video Converter Factory Pro is your perfect choice. Download and install it on your Windows 10 PC as well as other Windows OS like 8/7/Vista.

WonderFox HD Video Converter Factory Pro enables you to adjust all video parameters to fit YouTube Video Specs for uploading and apply changes to all your videos in batches. Learn more >

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1. Launch it and open the Converter interface. Then click "Add Files" on the top menu bar or drag all files into this program. It supports batch processing for multiple files.

2. Click the "Click to change output format" section on the right. You'll see 500+ formats and portable devices for your selection in the expanded list. Then select MP4 as the output format under the Web tab.

200+ Formats and Portable Devices

500+ Formats and Portable Devices

3. Click the "Parameter settings" button in the lower right corner of the software. You are allowed to alter the parameters to fit the recommended YouTube video specs in the new window, such as resolution, aspect ratio, encoder and bitrate, etc. It's easy to reduce video size with a proper regulation. Or just keep smart fit for better optimization if you're not familiar with the settings.

Adjust Video Settings

Adjust Video Settings

4. After done, click the inverted triangle at the bottom to define the output folder and click "Run" to apply your customized settings to all videos you imported.

Apply Settings to All Videos

Start the conversion

Now you are supposed to upload your videos to YouTube perfectly. Furthermore, WonderFox HD Video Converter Factory Pro also allows you not only to download YouTube 4K video, download Viu video as well as Hotstar video, but also to merge videos, add subtitles, rotate videos as a functional video editor. It indeed is a handy helper for YouTube Video Uploading.

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