TikTok aspect ratio and sizes, for every kind of post.
Video, photo-mode slideshows, covers, profile photos and ads, checked against TikTok's own pages as of October 2026. Plus what 11,457 slides from viral slideshows actually measured, and a tool that crops your photo to size.
Posting slideshows for an app? Type it and get three ideas, sized for TikTok, in about 20 seconds. Free, no sign-up.
Updated 26 October 2026
The TikTok aspect ratio is 9:16: a vertical 1080 × 1920 pixel video or photo fills the screen. Photo-mode slideshows also take 3:4 (1080 × 1440), which TikTok shows whole with a dark band above and below, and a post can hold up to 35 photos.
Square and landscape files work too, but they play as a band in the middle of the screen. TikTok doesn't stretch or crop photos in photo mode, so the shape you upload is the shape people see.
Every TikTok size in one table.
Organic posts first, then the two ad formats people ask about most. Copy it into your notes or design brief.
As of October 2026. Sources below the table.
| What | Size | Details |
|---|---|---|
| Posts | ||
| Video | 1080 × 1920 (9:16) | Fills the screen. 720 × 1280 is the lowest that still looks sharp. 16:9 and 1:1 play with bars. |
| Video length and file | Up to 10 min for most accounts | MP4 or MOV. TikTok has tested 60-minute uploads with some accounts. Apps that post for you can send files up to 4 GB, 23 to 60 fps, 360 to 4096 px a side. |
| Slideshow photo (photo mode) | 1080 × 1920 (9:16) or 1080 × 1440 (3:4) | 9:16 fills the screen; 3:4 shows whole with bands. JPEG or WebP, up to 20 MB each, shown at up to 1080p. |
| Photos per post | 2 to 35 | The first photo is the cover unless you pick another one. |
| Cover on your profile grid | 3:4 tile | The grid crops a 9:16 cover top and bottom. Keep cover text in the middle. |
| Profile photo | Square, at least 20 × 20 | Shown as a circle. Upload 400 × 400 or larger so it stays sharp. |
| Profile banner | None | TikTok profiles have no banner or header image. |
| Ads (TikTok Ads Manager) | ||
| In-feed video ad | 9:16 from 540 × 960, 1:1 from 640 × 640, 16:9 from 960 × 540 | MP4, MOV, MPEG, 3GP or AVI. Up to 500 MB and 10 minutes, bitrate 516 kbps or more. |
| Carousel ad | Vertical 720 × 1280, square 640 × 640, horizontal 1200 × 628 | JPG or PNG, 100 KB or less suggested. Upload 2 to 35 images (2 to 20 shown). Music is required. |
Sources: TikTok's video ad specifications and carousel ad specifications, the TikTok for Developers media transfer guide (file formats, sizes) and photo post reference (35 photos), and TechCrunch on the 60-minute upload test. TikTok doesn't publish a profile photo size; the 20 × 20 minimum is the figure social media guides agree on. Limits change by account and region, so the upload screen has the final word.
Crop a photo to TikTok size, right here.
Drop in a photo, pick 9:16, 3:4 or 1:1, slide the crop to where the subject is, and download it at 1080 pixels wide. The photo never leaves your device.
Loading the sample photo…
Runs in your browser. Nothing is uploaded.
What photo mode does with each shape.
The same 3:4 photo, cut to four shapes and placed the way TikTok places them: scaled to the width of the screen, never cropped, with the rest filled in dark.
9:16 · 1080 × 1920
Edge to edge. The caption and buttons sit on top of the photo, so plan around them.
3:4 · 1080 × 1440
A phone photo, uncropped. Thin bands top and bottom, with the caption partly on the lower band.
1:1 · 1080 × 1080
A band across the middle. Fine for text cards, small for photos of people.
16:9 · 1920 × 1080
A thin strip. Landscape videos get a full-screen button that turns the phone sideways.
Example made by ClonBot to show what it does. We're not affiliated with Cal AI.
Where to keep text. On a 9:16 photo or video, the caption, username and buttons cover the bottom and right edge. We cover the exact margins, with a downloadable overlay, in the TikTok safe zone guide.
The sizes viral slideshows actually used.
We measured every slide image of the 1,332 viral slideshows in the ClonBot library: 11,457 slides, as TikTok serves them. The official size is one thing; this is what got millions of views.
Share of slides by shape, within 2.5% of each ratio. The wider set of 26,564 slides from 3,022 posts we downloaded looks the same: 3:4 first (32.8%), 9:16 second (27.1%). "Taller than 9:16" is mostly screenshot-shaped images.
The single most common slide size (13.7% of slides), ahead of 1080 × 1920 (10.0%) and 2160 × 2880 (5.9%).
of viral slideshows mix shapes within one post, say a 9:16 cover and 3:4 photos after it. Matching every slide is optional.
of slides are at least 1080 pixels wide. Upload at 1080 wide or more; smaller photos look soft after TikTok compresses them.
So the practical answer for slideshows: shoot or export 3:4 if your photos are camera photos, 9:16 if you want every pixel of the screen, and don't crop a good photo just to hit 9:16. The steps for posting one are in how to make a slideshow on TikTok, and the formats behind these numbers are in the TikTok carousel guide. ClonBot builds its slideshows in these same shapes, from formats that already went viral.
TikTok size questions.
Is TikTok 9:16 or 3:4?
Both. Videos are made for 9:16 (1080 × 1920). Photo-mode slideshows accept 9:16 and 3:4 (1080 × 1440), and 3:4 is the most common shape in viral slideshows: 36.9% of the 11,457 slides we measured, against 26.2% for 9:16.
What is the best image ratio for TikTok?
9:16 at 1080 × 1920 if you want the photo to fill the screen. For slideshows of real photos, 3:4 at 1080 × 1440 keeps the whole picture and looks native, because it is the shape a phone camera shoots.
What aspect ratio is 1920x1080?
1920 × 1080 is 16:9, the landscape shape of YouTube and most screens. On TikTok it plays as a strip across the middle. Turn it to 1080 × 1920 (9:16) for full screen.
Is 1080p or 4K better for TikTok?
For most posts, 1080p. TikTok shows photos at up to 1080p and plays most videos at 1080p, so a 4K file mostly costs you upload time. Export 1080 × 1920 at a good bitrate.
How do I stop TikTok from zooming in on my video?
Most phones are taller than 9:16, so TikTok enlarges a 9:16 video slightly to fill the screen and trims a sliver off the sides. You can't switch that off, so keep faces and text away from the edges. If the clip was zoomed in the editor, pinch it back out before posting, and export at exactly 1080 × 1920.
How do I make a TikTok fit the whole screen?
Use 9:16. Crop the photo or video to 1080 × 1920 before uploading, with the crop tool above or in your editor. Anything wider shows with bars.
How many photos can a TikTok slideshow have?
Up to 35 photos in one photo-mode post, and at least two. Viral slideshows rarely use that many; most have 5 to 12.
Keep reading
The right size is the easy part. What goes on the slides is the hard part.
ClonBot remakes viral slideshows for your app, in the right shape. Plans from $99 a month for 30 posts.