TikTok Video Size Guide — Dimensions, Aspect Ratios & Best Practices
Getting your TikTok video size wrong means blurry playback, black bars, lost screen space, and lower engagement. TikTok is a fullscreen vertical platform — every pixel matters. If your video doesn't fill the screen edge-to-edge at the sharpest possible quality, you're giving competitors an advantage before your content even plays.
This guide covers the exact TikTok video size you should use, how every aspect ratio displays, what causes quality loss, how TikTok handles non-standard formats, and the best practices that keep your videos looking sharp on every device.
TikTok Video Specs at a Glance
Best Size: 1080×1920 px
Aspect Ratio: 9:16 (vertical)
Min Resolution: 720×1280 px
Max File (Mobile): 287.6 MB
Max File (Desktop): 10 GB
Max Duration: 10 minutes
Codec: H.264 recommended
Format: MP4 or MOV
Best TikTok Video Size
The correct TikTok video size is 1080×1920 pixels at a 9:16 aspect ratio. This is the native fullscreen vertical format that fills the entire phone display without cropping, letterboxing, or scaling.
| Spec | Recommended | Minimum |
|---|
| Resolution | 1080×1920 px | 720×1280 px |
| Aspect Ratio | 9:16 | 9:16 |
| Frame Rate | 30 fps | 24 fps |
| Codec | H.264 | H.264 or H.265 |
| Container | MP4 | MP4 or MOV |
| File Size (Mobile) | — | Max 287.6 MB |
| File Size (Desktop) | — | Max 10 GB |
| File Size (Ads Manager) | — | Max 500 MB |
| Duration | 15–60 sec | Max 10 min |
Why 1080×1920? Modern phone screens are 1080 px wide. At this resolution, TikTok maps your video pixel-for-pixel to the display. Lower resolutions get upscaled (blurry). Higher resolutions get downscaled (wasted file size, no visible benefit). 1080×1920 is the sweet spot.
Verify your video dimensions with the TikTok video size checker.
TikTok Aspect Ratios Explained
TikTok supports three aspect ratios. Only one fills the screen — the other two waste significant space.
| Ratio | Resolution | Screen Coverage | Display Behavior |
|---|
| 9:16 (vertical) | 1080×1920 | 100% | Fills entire screen — native format |
| 1:1 (square) | 1080×1080 | ~56% | Black bars above and below |
| 16:9 (landscape) | 1920×1080 | ~30% | Large black bars above and below; video is a small strip |
9:16 — Vertical (always use this)
The only ratio that fills the screen. Every TikTok UI element (captions, buttons, tabs) is designed around this format. Using 9:16 means maximum engagement, maximum screen presence, and no wasted space.
1:1 — Square
Loses roughly 44% of the screen to black bars. Common when repurposing Instagram content without re-editing. The video feels small and disconnected from TikTok's native experience. Engagement drops significantly compared to 9:16.
16:9 — Landscape
Loses over 70% of the screen. The video appears as a tiny horizontal strip surrounded by black. Only acceptable if you're repurposing a clip and literally have no other option — even then, consider cropping or reframing to 9:16.
Resolution and Quality
TikTok re-encodes every video on upload. Understanding this compression pipeline is the key to keeping your videos sharp.
How TikTok compression works
- You upload your video at its original resolution and codec
- TikTok re-encodes it to its own format and bitrate, regardless of your source quality
- The result depends on your source — higher-quality sources survive re-encoding better. Low-quality sources compound the compression, resulting in visible blur and artifacts.
How to maximize quality
- Export at 1080×1920 — the native resolution. Don't go lower (gets upscaled and blurry). Going higher (4K) wastes file size with no visible benefit after TikTok's re-encoding.
- Use H.264 codec — the most universally compatible codec and the one TikTok's pipeline handles best.
- Don't pre-compress — export at high quality (high bitrate) from your editing software. Let TikTok handle the final compression from a high-quality source.
- 30 fps for most content — 60 fps is fine for fast-motion content but doubles file size. 30 fps is smooth enough for talking heads, tutorials, and most formats.
- Enable "Upload HD" in TikTok — when posting, toggle this option. Without it, TikTok applies more aggressive compression that noticeably reduces quality.
How TikTok Crops and Displays Videos
TikTok doesn't crop 9:16 videos — they display fullscreen as-is. But non-9:16 content gets handled differently, and even correct-ratio videos have content hidden by UI overlays.
Non-9:16 handling
- Landscape (16:9): black bars added above and below. No cropping, but the video shrinks to a small horizontal strip.
- Square (1:1): black bars above and below. Centered vertically. Video is noticeably smaller than fullscreen.
- Slightly off ratio: minor letterboxing or subtle stretching depending on the exact ratio. Always export at exactly 9:16.
UI overlay coverage
Even at 9:16, TikTok layers UI on top of your video:
- Bottom-left (~300 px): username, caption, music ticker
- Right side (~80 px): like, comment, share, bookmark buttons
- Top (~100 px): For You / Following tabs, search icon
The safe zone — the area clear of all overlays — is the center 50–60% of the screen. Keep all key text, faces, and products in this zone. Check yours with the TikTok safe zone tool.
Profile grid crop
Your video cover is displayed at ~3:4 in the profile grid, cropping roughly 240 px from the top and bottom of the 9:16 frame. The view count overlays the bottom-left of the thumbnail. Preview your cover with the TikTok cover preview tool.
Common TikTok Video Size Problems
Video has black bars
You uploaded a landscape or square video. TikTok adds bars to fill the 9:16 screen. Fix: re-edit or crop to 1080×1920 before uploading. Don't add your own bars inside the video — TikTok may add additional bars around them.
Video looks blurry after uploading
Your source is low-resolution or pre-compressed. TikTok's re-encoding compounds the quality loss. Fix: export at 1080×1920, H.264, high bitrate. Enable "Upload HD" in TikTok's posting settings.
Text hidden behind captions or buttons
Text placed in the bottom third or right side of the video is covered by TikTok's UI overlays. Fix: place all text in the center of the frame. Check with the safe zone tool.
Video looks stretched or distorted
The pixel aspect ratio (PAR) isn't 1:1, or the export dimensions don't match 9:16. Fix: export at exactly 1080×1920 with square pixels (PAR 1:1).
Upload rejected or fails
File exceeds TikTok's size limit (287.6 MB on mobile, 10 GB on desktop) or uses an unsupported codec. Fix: re-export as MP4 with H.264. Reduce bitrate or duration if the file is too large.
Cover looks cropped on profile
The profile grid crops covers to ~3:4, cutting the top and bottom of 9:16. Key content near edges is hidden. Fix: center important elements vertically. Preview with the cover preview tool.
TikTok Video Size Best Practices
- Always export at 1080×1920 (9:16) — no exceptions. Every other ratio results in black bars, quality loss, or awkward formatting.
- Use H.264 codec in an MP4 container — the most compatible format for TikTok's encoding pipeline.
- Export at high quality, don't pre-compress — let TikTok handle the final compression from a high-quality source. Pre-compressed files look worse after re-encoding.
- Enable "Upload HD" every time — this reduces TikTok's compression aggressiveness. It's off by default and must be toggled for each upload.
- 30 fps for most content, 60 fps for fast motion — 30 fps is smooth enough for most formats. 60 fps looks better for sports, dance, and fast-paced content but doubles file size.
- Keep key content in the safe zone — the center 50–60% of the frame. Avoid the bottom third (captions), right side (buttons), and top (navigation). Check with the safe zone tool.
- Don't add your own letterbox bars — if your source is landscape, crop and reframe to 9:16. Adding bars inside the video wastes pixels and TikTok may add more bars around them.
- Design covers for the grid crop — your cover is cropped to ~3:4 on the profile grid. Center faces, text, and logos vertically. Preview with the cover preview tool.
- For ads, use tighter safe zones — TikTok ads add CTA buttons, headlines, and "Sponsored" labels that cover more area than organic overlays. Preview with the ad preview tool.
Verify your video before posting to catch size, crop, and safe zone issues before your audience sees them.
TikTok Video Size FAQ
What is the best TikTok video size?▼
1080×1920 pixels at 9:16. This fills the phone screen without cropping or letterboxing. TikTok's minimum is 720×1280, but 1080×1920 delivers the sharpest result. Verify with the
video size checker.
What aspect ratio should TikTok videos use?▼
9:16 (vertical). TikTok also accepts 1:1 and 16:9, but these display with black bars and lose 44–70% of the screen. Only 9:16 fills the full display.
Why does my TikTok video look blurry?▼
TikTok re-encodes all uploads. Low-resolution or pre-compressed sources become visibly blurry. Upload at 1080×1920, use H.264 codec, export at high bitrate, and enable "Upload HD" in TikTok's posting settings.
What is the maximum file size for TikTok videos?▼
Up to 287.6 MB from a phone, 10 GB from desktop, and 500 MB via TikTok Ads Manager. Videos can be up to 10 minutes long.
Does TikTok crop landscape videos?▼
TikTok doesn't physically crop them, but adds large black bars above and below to fill the 9:16 screen. The video appears as a small horizontal strip, losing over 70% of the screen. Always use 9:16.
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