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Quick Reference: TikTok Video Size
Recommended resolution : 1080 x 1920 px
Minimum resolution : 540 x 960 px
Aspect ratio : 9:16 (vertical)
Max file size (iOS) : 287.6 MB
Max file size (Android): 72 MB
Max file size (web) : 500 MB
Max duration : 10 minutes
Recommended format : MP4, H.264, AAC
Examples
Example 1: Standard Vertical TikTok Video
The correct size for a standard TikTok video is:
Resolution : 1080 x 1920 pixels
Aspect ratio: 9:16
Frame rate : 30 FPS
Format : MP4 (H.264)
Max file size: 287.6 MB (iOS) / 72 MB (Android)
This is the format TikTok is optimized for. Videos at this size fill the entire screen with no black bars.
Example 2: Reducing TikTok File Size
A 3-minute video at 1080x1920 is too large to upload from Android (72 MB limit). Reduce the file size by lowering the bitrate:
ffmpeg -i input.mp4 -vcodec h264 -b:v 3M -acodec aac -b:a 128k output_tiktok.mp4
A bitrate of 3 Mbps produces roughly 67 MB for a 3-minute video — within the Android limit while maintaining acceptable quality.
Example 3: Square Video on TikTok
Square videos (1:1) are supported but display with black bars on the sides:
Square format : 1080 x 1080 pixels (1:1)
Display result: Black bars on left and right sides
Recommendation: Use 1080x1920 (9:16) for full-screen display