Resize Video for Instagram Reels
Instagram Reels uses the same 9:16 vertical frame as TikTok at 1080x1920.
- Free
- No watermark
- No upload, runs on your device
How to Resize a Video for Instagram Reels
1 Upload your source clip
Drag any source file onto the uploader. The file stays local on your device.
2 Keep the 9:16 Reels preset
The lander preselects 1080x1920 letterbox and holds those numbers after your file loads. Switch to Crop to drag out a region of the picture instead.
3 Export and upload
Click Resize Video and upload the MP4 through Instagram's mobile app or the creator studio on desktop.
Resizing for Instagram Reels in detail
Instagram Reels uses the same 9:16 vertical frame as TikTok at 1080x1920. What is different is Instagram's UI chrome: the top bar is thicker, the caption bar sits higher, and the right-side action column (like, comment, share, save, audio avatar) covers more of the horizontal space. Content that works as a clean TikTok often gets partially hidden on Reels because the right action column eats roughly the right 90 pixels of the frame on most iPhones. Planning for the Reels safe zone specifically, not the TikTok one, makes a real difference in engagement.
Letterbox mode fits any source into the 1080x1920 Instagram Reels frame with black bars top and bottom, useful if you shot horizontal and want every frame visible. Crop mode is a drag box: select the part of the picture you want and the export is that region at source pixel size, ready to letterbox afterward if you need the exact Reels frame. Either way the output is a standard H.264 MP4 that Reels transcodes cleanly.
Because Reels also appears in the main feed and Explore, not just the Reels tab, having a clean 1080x1920 source matters for visual consistency across the three surfaces. Every pixel is authored by you here, not by Instagram's automatic cropping.
Instagram Reels video specifications
| Setting | Value | Notes |
|---|---|---|
| Aspect ratio | 9:16 | Native Reels format. |
| Resolution | 1080 x 1920 | Full HD vertical. |
| Maximum duration | 3 minutes | Raised from 90 seconds in January 2025. |
| Top safe zone | 250 pixels | Occluded by account handle, music label, and action menu. |
| Bottom safe zone | 340 pixels | Covered by caption and tags. |
| Right safe zone | 90 pixels | Reserved for the right-side action column. |
| Codec | H.264 MP4 with AAC audio | Required for clean Reels playback. |
When to use this preset
Repurposing TikTok for Reels
Take a 1080x1920 TikTok export and re-author with a right-side margin so Instagram's action column does not cover your subject.
Brand campaigns
Letterbox a polished 16:9 ad creative into 9:16 with brand bars on top and bottom that reinforce the logo.
Recipe and how-to clips
Crop a tall region out of a landscape overhead cooking shot, then letterbox it into 9:16 so the dish stays central in the Reels viewport.
Creator collab cross-posts
Resize a collaborator's landscape podcast clip to 9:16 for a Reels promo, letterboxed with a quote overlay in the safe band.
Feed repost from Stories
Convert a 9:16 Story to a standalone Reel by re-exporting at 1080x1920 so the feed preview card is full resolution.
Frequently asked questions
What is the best size for Instagram Reels?
Instagram recommends 1080 pixels wide by 1920 pixels tall in a 9:16 aspect ratio. That is the exact frame the Reels viewer uses on iOS and Android. Uploading at other sizes works but Instagram auto-crops, which often cuts important visual content without warning.
What aspect ratio works for Reels?
The native ratio is 9:16. Square 1:1 and landscape 16:9 uploads are accepted but displayed inside a 9:16 viewport with black space around them, which looks cheap next to purpose-made Reels. Always resize to 9:16 before uploading if the goal is to look native in the Reels tab.
Why is my Reel cropped?
Instagram automatically crops uploads that do not match 9:16. It picks a crop region based on its own content-detection heuristics, and the choice is often wrong. To control the crop yourself, resize to 1080x1920 before upload using letterbox or crop mode in this tool.
How long can an Instagram Reel be?
Reels can be up to 3 minutes long in the app. Instagram raised the limit from 90 seconds in January 2025. Every video you post to the feed publishes as a Reel, so 3 minutes is the practical ceiling for Reels distribution. Longer stories work better split into parts.
Does Instagram compress Reels?
Yes, Instagram re-encodes every upload. Better source quality generally produces a better output, but extreme bitrates do not survive the transcode. Exporting at a moderate 10 to 15 Mbps 1080p gives the cleanest result after Instagram's server-side compression.
What is the Reels safe zone?
The safe zone is the region never covered by Instagram's UI. Top 250 pixels for the handle and music label, bottom 340 for the caption, right 90 for the action column. Your useful visual space is roughly 990x1330 in the center-left of the 1080x1920 frame.
Can Reels be horizontal?
Technically yes, but the Reels viewer shrinks a 16:9 upload into the 9:16 window with black bars above and below. That uses only about 42% of the visible area for actual content, which looks weak next to full-frame 9:16 creators. Always resize to 9:16.
Related tools
Resize Video for TikTok
9:16 1080x1920, different UI safe zones.
Resize Video for YouTube Shorts
9:16 with a 3 minute cap.
Resize video
Multi-preset batch or fully custom dimensions.
Video cropper
Cut a 9:16 region out of a landscape clip instead of letterboxing it.
Guide: social media video specs
Reels next to every other platform, in one table.