I have edited videos that looked perfect before upload but appeared cropped, blurry, or surrounded by empty space on TikTok. In most cases, the problem was not the content. It was the export settings.
TikTok does support different video formats and sizes. Still, one setup works well for most creators: a vertical video at 1080 x 1920 pixels with a 9:16 aspect ratio.
That format fills the phone screen and looks natural in the For You feed. It also gives you enough quality for text, product shots, tutorials, and talking-head videos.
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See Available Accounts →This guide covers TikTok video dimensions, resolution, length, formats, file-size limits, ad specifications, and simple ways to resize a video before posting.
What Is the Best TikTok Video Size?

For most TikTok posts, use 1080 x 1920 pixels with a 9:16 aspect ratio.
This is the full-screen vertical format people see while scrolling TikTok. It is the safest choice for regular posts, creator content, product videos, tutorials, and most ad creatives.
Here is the quick answer:
| Setting | Best Choice for Most TikTok Videos |
| Video dimensions | 1080 x 1920 pixels |
| Aspect ratio | 9:16 |
| Orientation | Vertical or portrait |
| Recommended format | MP4 |
| Alternative format | MOV |
| Recommended resolution | 1080p |
| Best use | Regular posts, LIVE clips, tutorials, product videos, creator content |
TikTok also supports square and horizontal videos. However, vertical 9:16 video is usually the better choice because it uses more of the mobile screen.
A landscape video can still work for gameplay, interviews, movies, or widescreen footage. But it will not fill the entire screen in the same way as a vertical video.
TikTok Video Dimensions
Video dimensions tell you the width and height of a video in pixels.
For TikTok, the standard vertical size is:
1080×1920 pixels
The width is 1080 pixels. The height is 1920 pixels.
This creates a tall, vertical video designed for smartphone viewing. It matches the shape of most phone screens and works well with TikTok’s full-screen feed.
TikTok Aspect Ratio
The aspect ratio for a standard TikTok video is 9:16.
This means the video is nine units wide and 16 units tall. You do not need to calculate it yourself. If you select a TikTok preset in your editing app, it should apply the correct ratio automatically.
TikTok can also display other aspect ratios:
| Aspect Ratio | Common Use | What It Looks Like |
| 9:16 | Standard TikTok videos | Full-screen vertical video |
| 1:1 | Square videos | Leaves space above and below |
| 16:9 | Landscape video | Leaves space around the video on mobile |
| 4:5 | Portrait feed content | Taller than square, but does not fill the screen |
For most creators, 9:16 remains the best default.
TikTok Video Specs for 2026
TikTok limits can change depending on how you create and upload a video. A clip recorded in the TikTok app does not always follow the same rules as a file uploaded from your phone, browser, or TikTok Studio.
Use this as a practical starting point.
| Setting | Organic TikTok Posts | TikTok Ads |
| Recommended dimensions | 1080 x 1920 pixels | 1080 x 1920 pixels |
| Recommended aspect ratio | 9:16 | 9:16 |
| Minimum vertical resolution | Use 1080 x 1920 when possible | 540 x 960 pixels |
| Recommended format | MP4 | MP4 or MOV |
| Other accepted ad formats | Varies by upload method | MOV, MPEG, 3GP, and AVI may be supported |
| In-app recording length | Up to 10 minutes | Not applicable |
| Uploaded video length | Can vary by upload method and account | Depends on ad type |
| Ad file-size limit | Not an ad specification | Up to 500 MB for many placements |
TikTok’s ad documentation recommends vertical 9:16 creative for in-feed ads. For non-Spark in-feed ads, TikTok lists a minimum vertical resolution of 540 x 960 pixels and accepts formats including MP4, MOV, MPEG, 3GP, and AVI. The maximum file size is 500 MB.
What Is the Maximum TikTok Video Length?
TikTok video length depends on how you create your post.
If you record your video inside the TikTok app, you can usually record for up to 10 minutes. This works well for tutorials, reviews, storytimes, walkthroughs, and longer educational videos.
Pre-recorded uploads can follow different limits. TikTok may allow longer uploads through some upload methods, including browser-based uploads or other creator tools. Always check the upload screen before exporting a long video.
The best length is not the same for every post.
A quick tip, trend, or product hook may only need a few seconds. A recipe, review, lesson, or story may need more time. I usually focus on whether the video gets to the point early rather than trying to force every post into one length.
Avoid adding extra seconds just because TikTok allows them. If a viewer understands the point in 20 seconds, a two-minute version may not help.
What File Format Should You Use?
For most TikTok videos, use MP4.
MP4 is widely supported, easy to export from most editing apps, and usually gives you a good balance between quality and file size. MOV is also a reliable choice, especially if you edit on an iPhone or in Apple software.
For normal organic posts, keep it simple:
- Export in MP4 when possible
- Use 1080 x 1920 pixels
- Choose a 9:16 canvas
- Check the video before posting
- Make sure text is easy to read on a phone screen
TikTok Ads Manager supports additional formats for some placements, including MP4, MOV, MPEG, 3GP, and AVI. These requirements apply to ad creatives, so check the specifications for the placement you choose before uploading.
TikTok File-Size Limits
TikTok does not use one universal file-size limit for every creator, device, or upload method.
The limit may change based on:
- Your phone operating system
- Your app version
- Whether you upload through the app or a browser
- Whether you use TikTok Studio
- Whether you are publishing an organic video or an ad
- The format, resolution, and length of the video
That is why I would not export a large video based only on an old file-size number from a random guide.
For regular posts, export your video in 1080p and use MP4. If the upload fails, reduce the file size by lowering the bitrate or trimming unused footage. Do not reduce the resolution first unless you have to.
For many TikTok ads, the maximum creative file size is 500 MB.
Should TikTok Videos Be Vertical or Horizontal?

Vertical video is the best choice for most TikTok posts.
A 9:16 video fills the phone screen. It makes your content easier to see while someone scrolls. It also gives you more room for faces, product close-ups, captions, and on-screen text.
Horizontal video is not banned. It can make sense for:
- Gaming footage
- Movie clips
- Interviews with several people
- Sports highlights
- Wide product shots
- Scenic travel footage
Still, I would create a vertical version first if TikTok is your main platform. It will usually look more natural in the feed.
TikTok accepts horizontal 16:9 and square 1:1 formats for several ad placements, but vertical 9:16 is the recommended option for in-feed ad creative.
Keep Text in the Safe Area
Your video may be the correct size and still look messy after posting.
TikTok places buttons, captions, usernames, descriptions, and other interface elements around the screen. If you put important text too close to the top, bottom, or right side, it may be covered.
Keep key text, faces, logos, and calls to action closer to the center of the frame.
For example, do not place your main caption at the bottom-right corner. TikTok’s like, comment, share, and profile buttons can cover it.
A simple rule helps: preview the video on a phone before posting. If you cannot read the text quickly, move it inward or make it larger.
How To Resize a TikTok Video
Sometimes you have a video in the wrong shape. You may have filmed it horizontally, downloaded a square clip, or reused a video from YouTube, Instagram, or Facebook.
You can resize it before posting.
Start by opening the video in an editor. Then select a 9:16 canvas or TikTok preset. Resize the video until it fits the frame. If the original video is horizontal, you can crop it, add a blurred background, or use a colored background.
Do not stretch a horizontal video into a vertical shape. It will make faces and objects look distorted.
Resize With Adobe Express

Adobe Express has ready-made vertical video presets. Upload your video, select a TikTok-friendly canvas, and adjust the crop.
It is useful for quick edits, basic text, simple transitions, and resizing a short clip without using professional editing software.
Resize With Canva

Canva is helpful if you want to resize a video and add text, product images, brand colors, or simple animations.
Choose a TikTok video template or create a 1080 x 1920 design. Upload your footage, fit it into the canvas, and check that your text stays away from the screen edges.
Resize With VEED

VEED is useful for creators who need captions, trimming, subtitles, and quick social-media edits.
You can upload a file, choose a vertical 9:16 format, edit the clip, and export it for TikTok. It is especially useful for talking-head videos and tutorials.
Resize With Kapwing

Kapwing includes preset sizes for different platforms. Select the TikTok format, adjust the crop, and add padding or a background if needed.
It is a simple option for converting a horizontal clip into a vertical video without losing the main subject.
After editing, review the video before uploading. Make sure your face, product, captions, and key visuals are not cropped. A clear layout can also help you create videos that support stronger engagement over time.
How To Export a TikTok Video
Before you post, check these settings:
- Canvas size: 1080 x 1920 pixels
- Aspect ratio: 9:16
- Orientation: Vertical
- File format: MP4
- Resolution: 1080p
- Text placement: Away from the edges
- Video quality: Clear when viewed on a phone
- Audio: Check that it is not muted or distorted
If you use an editing app, look for a TikTok export preset. It can save time and reduce the chance of choosing the wrong size.
For ads, check TikTok Ads Manager before export. TikTok uses different specifications across placements, and the right settings for a Spark Ad may differ from a non-Spark in-feed ad.
Common TikTok Video Size Problems
I have run into a few common TikTok video problems after uploading, especially when the original clip was made for another platform.
My TikTok Video Has Black Bars
Black bars usually appear when your video does not match the 9:16 frame.
Resize the file to 1080 x 1920 pixels. If you do not want to crop the original video, add a blurred or solid background behind it.
My Video Looks Blurry
Blurry TikTok videos can come from a low-resolution original file, heavy editing, repeated downloads, or compression.
Start with the highest-quality original file you have. Export at 1080p. Avoid downloading and re-uploading the same video several times before posting.
My Text Is Covered by TikTok Buttons
Move your text away from the lower-right corner and bottom section of the screen.
TikTok’s interface can cover captions, buttons, links, and other important details. Keep the key message in the center area.
My Video Will Not Upload
Check the file format first. MP4 is the safest option for most creators.
Then check your internet connection, app version, video length, and file size. If the problem continues, export a smaller MP4 file and try again.
TikTok Video Size for Ads
If you run TikTok ads, use the same basic visual setup as organic content: vertical 9:16 video at 1080 x 1920 pixels.
TikTok supports other ratios for many ad placements, including square 1:1 and horizontal 16:9. But vertical video remains the best starting point because it takes up more screen space in the feed.
For many non-Spark in-feed ads, TikTok lists these technical limits:
| Ad Setting | Recommended Option |
| Video ratio | 9:16 |
| Minimum vertical size | 540 x 960 pixels |
| Best size | 1080 x 1920 pixels |
| Supported formats | MP4, MOV, MPEG, 3GP, AVI |
| Maximum file size | Up to 500 MB |
TikTok also has placements with shorter recommended or required video lengths. Reservation in-feed ad specifications, for example, list 5 to 60 seconds for non-Spark and Spark Ads Push, with 9 to 15 seconds recommended.
Before you launch a campaign, check the specifications inside Ads Manager. TikTok can update its rules by placement, country, ad type, and creative format.
Final Thoughts
For most TikTok videos, I use 1080 x 1920 pixels. I choose a 9:16 ratio and export in MP4.
This setup gives me a full-screen vertical video that looks right on a phone.
TikTok limits can change based on how you upload. Ads can also have different rules. So, check the upload screen before you post a long video or a large file.
Start with the basic settings. Then focus on the video itself. A good hook, clear message, and strong edit still matter most.
You can also use TikTok templates if you want to make videos faster and keep your content style consistent.
FAQs
What Is the Best TikTok Video Size in 2026?
The best TikTok video size for most posts is 1080 x 1920 pixels. Use a 9:16 aspect ratio and vertical orientation to create a full-screen video for mobile viewers.
What Is the Best TikTok Video Resolution?
Use 1080p whenever possible. A 1080 x 1920 video looks clear on most phones and gives TikTok a high-quality file to process.
What Is the Best TikTok Video Format?
MP4 is the best format for most TikTok videos. MOV also works well, especially for videos edited on Apple devices.
What Is the Maximum TikTok Video Length?
TikTok videos recorded inside the app can be up to 10 minutes long. Upload limits may differ when you post a pre-recorded video through other upload methods, so check the upload screen before exporting a long video.
What Is the Maximum TikTok File Size?
There is no single file-size limit for every organic TikTok upload. The limit can vary by device, app version, and upload method. For many TikTok ad placements, the maximum file size is 500 MB.
Should TikTok Videos Be Vertical or Horizontal?
Vertical 9:16 is the best choice for most TikTok videos because it fills the mobile screen. TikTok can also support square and horizontal videos, but they do not use the full-screen format in the same way.
Can I Upload a Horizontal Video to TikTok?
Yes. TikTok supports horizontal video, but it may leave empty space around the footage on a phone screen. If possible, create a vertical version for TikTok first.
Emi Daniel
Emi Daniel is a content writer at Social Tradia, where he writes clear, useful content that helps readers find what they need. Outside of work, he enjoys gaming and coding.
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