What is the TikTok aspect ratio?

9:16. TikTok accepts square and horizontal videos too, but shows them smaller with empty space.

What are TikTok dimensions for a photo?

The same 1080 × 1920 if you want it to fill the screen. A photo post can hold up to 35 photos.

What's the smallest size TikTok accepts?

TikTok's posting tools take videos from 360 pixels a side, but TikTok recommends at least 720p for anything you want people to watch.

Does TikTok support 4K?

TikTok's posting tools accept up to 4096 pixels a side, but phones show far less. 1080 × 1920 looks just as sharp and uploads faster.

What's the TikTok file size limit?

4 GB through TikTok's posting tools, and 500 MB for ads. A 1080 × 1920 video a few minutes long is usually well under 500 MB.

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TikTok video size and aspect ratio

TikTok videos should be 1080 × 1920 pixels, a 9:16 aspect ratio. TikTok asks for 9:16 at 720p or better, and its posting tools take anything from 360 to 4096 pixels a side. Check your video below.

TikTok video size

1080 × 1920 px · 9:16

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TikTok video dimensions and limits

What	Value	From
Size	1080 × 1920 px	9:16 at full HD
Aspect ratio	9:16	TikTok creative best practices
Smallest recommended	720p (720 × 1280)	TikTok creative best practices
Smallest and largest	360 to 4096 px a side	TikTok's posting tools guide
Frame rate	23 to 60 frames per second	TikTok's posting tools guide
File size	Up to 4 GB (posting tools), 500 MB (ads)	TikTok developer and ads help
Length	3 minutes for everyone, up to 10 for some	TikTok's posting tools guide

Horizontal video on TikTok

TikTok plays a 16:9 video as a narrow strip with black above and below. People can turn their phone for some long videos, but most scroll past first. If the video started life wide, reframe it to 9:16 and keep the subject in the middle.

Don't add your own black bars or blurred backgrounds to reach 9:16. TikTok can't tell them from the picture, and your captions end up further from the action.

Photo posts

A TikTok photo post can hold up to 35 photos, which play as swipeable slides. Use 1080 × 1920 for photos that fill the screen; phone photos at 3:4 show with space above and below.

Sources

The official pages these numbers come from, and what each one says.

TikTok Business Help Center: TikTok Auction In-Feed Ads
The downloadable In-Feed safe zone file (measured for this tool); 9:16 at 540 × 960 or more; 16:9 and 1:1 also accepted for ads.
TikTok Business Help Center: Creative best practices
Film vertically at 9:16 and at least 720p.
TikTok for Developers: Content Posting API media guide
Every creator can post 3-minute videos and some can post 5 or 10 minutes; 360 to 4096 pixels a side; 4 GB.

TikTok's help centre gives no size, length or file limits for ordinary posts. These come from TikTok's ads help and its developer guide for posting tools.
TikTok has tested uploads of up to 60 minutes with some accounts. No official TikTok page we could read lists it, so this tool uses 10 minutes.

Every page above was read on 2 October 2026. Apps change their screens often: if something looks different on your phone, trust your phone.

Questions

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Last checked 2 October 2026

1080 × 1920 pixels, a 9:16 vertical video.

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