Instagram Reels · Spec reference
Instagram Reel Size: Dimensions, Safe Zones & Export Specs
The full 2026 spec sheet for Instagram Reels — resolution, aspect ratio, safe zones, and export settings — plus what to set and export when your video comes out of an AI video generator, so it never gets cropped or blurred on upload.
By Jay Yang · · 9 min read
What size is an Instagram Reel?
The recommended Instagram Reel size is 1080 × 1920 pixels — a 9:16 vertical aspect ratio, the format Instagram displays full-screen in the Reels tab. The minimum is 720 × 1280. Export as MP4 (H.264 video, AAC audio) at 30 fps and roughly 5–8 Mbps for 1080p, keep the file comfortably under 100 MB, and keep text, faces, and logos inside the central safe zone so Instagram's interface and feed crop don't cover them.
Instagram Reel size cheat sheet (2026)
The numbers that matter, in one table. Set these in your editor — or in your AI video generator's output settings — before you export.
| Spec | Value | Note |
|---|---|---|
| Aspect ratio | 9:16 (vertical) | Full-screen Reels display |
| Recommended resolution | 1080 × 1920 px | Crisp on modern phones |
| Minimum resolution | 720 × 1280 px | Below this looks soft |
| Cover / thumbnail | 1080 × 1920 px (9:16) | A 1:1 crop also shows on the grid |
| Container format | MP4 or MOV | MP4 is the safest choice |
| Video / audio codec | H.264 / AAC | Universally supported |
| Frame rate | 30 fps (up to 60) | Use 60 only for motion-heavy clips |
| Bitrate (1080p) | 5–8 Mbps | Higher won't survive Instagram's re-encode |
| File size | Keep under ~100 MB | Hard max 4 GB; smaller dodges heavy recompression |
| Length for reach | 15–90 seconds | Up to 3 min before reach drops; longer technically allowed |
Specs verified June 2026 against Instagram Help and current creator guidance (see Sources below). Instagram updates these periodically.
How a Reel is cropped across placements
One upload is shown at three different crops. Your full 9:16 frame only appears in the Reels tab — the feed and profile grid crop in, which is why centering matters.
| Placement | Crop | Pixels |
|---|---|---|
| Reels tab (full-screen) | Full 9:16, edge-to-edge | 1080 × 1920 |
| Home feed preview | 4:5 portrait crop | 1080 × 1350 |
| Profile grid | 1:1 square crop | 1080 × 1080 |
Instagram Reels safe zone
Instagram layers its own buttons, caption, and username on top of your video, and crops it differently per placement. Keep anything that must stay visible inside the central safe band.
caption + buttons
Keep key content in 1080 × 1320 px (centered)
- Top ~250 px is partly covered by the status bar and audio/eyebrow elements — keep headlines below it.
- Bottom ~350 px holds the caption, username, like/share/comment buttons, and audio attribution — never put key text or your logo here.
- Keep faces, headlines, product, and logos inside the central 1080 × 1320 band so the 4:5 feed crop and the 1:1 grid crop don't cut them off.
- When in doubt, nudge text higher than feels natural while editing — the bottom always loses more than you expect.
Export settings that survive Instagram
Instagram re-encodes every upload. These settings give it clean source to work from so your Reel stays sharp instead of turning blocky or washed-out.
| Setting | Value | Note |
|---|---|---|
| Resolution | 1080 × 1920 | Export at native 9:16 |
| Frame rate | 30 fps | Match your source; 60 fps for fast motion |
| Bitrate | 5–8 Mbps | Instagram itself suggests ~4 Mbps; above ~10 Mbps is wasted |
| Codec | H.264 High profile | AAC audio, 48 kHz stereo |
| Color | sRGB / Rec.709 | Avoids dull or shifted colors after upload |
| File size | < 100 MB | A smaller, well-encoded file beats a huge one IG re-compresses anyway |
Why it matters: pushing the bitrate sky-high does not survive Instagram's compression — you just upload a bigger file for the same on-screen result.
Exporting an AI-generated video at the right Reel size
AI video generators often default to 16:9 (landscape). Drop a 16:9 clip into Reels and Instagram either pillarboxes it with black bars or crops the sides off your subject. The fix is to generate vertical from the start, not crop after.
- 1
Set 9:16 in the generator, not after export
Choose the 9:16 / vertical aspect ratio in your AI video generator before generating. Cropping a finished 16:9 clip down to 9:16 throws away half the frame and usually decapitates the subject.
- 2
Generate at 1080p (1080 × 1920)
Pick the 1080p output tier so the Reel is crisp on phone screens. AI clips upscaled after the fact look softer than ones generated at target resolution.
- 3
Compose for the safe zone in your prompt
Prompt the subject and any on-screen text to sit in the central band — e.g. "subject centered, headroom at top, clear space at the bottom third" — so the feed and grid crops never cut the important part.
- 4
Export watermark-free MP4 at 5–8 Mbps
Use a watermark-free paid tier — Instagram has said it deprioritizes visibly recycled clips that carry another app's watermark — and export H.264 MP4 around 5–8 Mbps, under 100 MB.
- 5
Add trending audio inside Instagram and post
Add a trending audio track in the Instagram app rather than baking audio in — the algorithm favors native trending sounds — then add captions inside the safe zone and publish.
Common Reel size mistakes (and quick fixes)
The handful of issues behind almost every "why does my Reel look wrong" question.
| Mistake | Quick fix |
|---|---|
| Reel gets cropped / sides cut off | You uploaded 16:9 or 1:1. Re-export at 9:16 (1080 × 1920); for AI clips, regenerate vertical instead of cropping. |
| Reel looks blurry after upload | Source bitrate too low or you uploaded over a weak connection. Export 1080p at 5–8 Mbps H.264 and upload on Wi-Fi. |
| Caption covers your text / logo | Your text sat in the bottom 350 px. Move it into the central safe band (1080 × 1320). |
| Black bars around the video | A non-9:16 clip is being letterboxed. Fill the full 1080 × 1920 frame at 9:16. |
| "Couldn't process" / source error on upload | Unsupported codec or oversized file. Re-encode to H.264 MP4, AAC audio, under 100 MB. |
Glossary
- Aspect ratio
- The width-to-height proportion of a video. Instagram Reels use 9:16 (vertical).
- Safe zone
- The central area of a Reel that Instagram's interface and feed crops never cover — roughly the middle 1080 × 1320 px.
- Bitrate
- How much data per second of video. Higher bitrate = more detail and larger files; ~5–8 Mbps is ideal for 1080p Reels.
- Letterboxing / pillarboxing
- Black bars added when a clip's aspect ratio does not match the 9:16 frame.
- H.264
- The standard video codec Instagram expects, paired with AAC audio in an MP4 container.
- Re-encoding
- Instagram re-compresses every upload, which is why a clean, correctly-sized source matters more than a huge file.
- Image-to-video
- Generating a moving clip from a still image — set 9:16 here too so the output is Reel-ready.
Instagram Reel size FAQ
What is the best size for Instagram Reels in 2026?
1080 × 1920 pixels at a 9:16 aspect ratio. That is Instagram's recommended full-screen Reels resolution; the minimum is 720 × 1280.
What is the Instagram Reels safe zone?
The central area Instagram's UI never covers. Roughly the top 250 px and bottom 350 px are reserved for status bars, captions, and buttons, so keep key content in the middle 1080 × 1320 band.
Why does my Reel get cropped after I upload it?
You uploaded a 16:9 or 1:1 clip. Only 9:16 fills the Reels frame; other ratios get cropped or letterboxed. Re-export at 1080 × 1920, and for AI-generated clips set 9:16 before generating rather than cropping afterward.
What aspect ratio should I export an AI-generated video for Reels?
9:16 (1080 × 1920). Most AI generators default to 16:9 — switch to vertical in the generator's settings so you fill the frame instead of cropping the subject later.
What bitrate stops Instagram from blurring my Reel?
Export 1080p at about 5–8 Mbps with H.264. Instagram suggests around 4 Mbps and re-encodes everything, so going much higher just makes a bigger file for the same result — a clean 5–8 Mbps source is the sweet spot.
Why does my Reel look blurry even though the original was sharp?
Usually a too-low source bitrate or uploading on a weak connection. Export at 5–8 Mbps, keep it under 100 MB, and upload over Wi-Fi so Instagram's compression starts from clean source.
How long can an Instagram Reel be?
Reels run from 3 seconds up to 3 minutes for reach, and some accounts can upload much longer (15–20 minutes). But Instagram's discovery algorithm largely stops recommending Reels over 3 minutes to non-followers, so 15–90 seconds performs best.
What size is an Instagram Reel cover or thumbnail?
Design the cover at 1080 × 1920 (9:16). Keep the title within a centered 1:1 area too, since the profile grid shows a 1080 × 1080 square crop of the cover.
Sources
- Instagram recommends a 9:16 aspect ratio at 1080 × 1920 pixels for Reels, with a 720 × 1280 minimum. — Instagram Help Center
- Instagram suggests roughly a 4 Mbps bitrate for Reels; a practical 5–8 Mbps at 1080p balances quality and file size, and higher bitrates do not survive Instagram's compression. — CapCut
- Instagram's discovery algorithm largely stops recommending Reels longer than 3 minutes to non-followers, even though some accounts can upload Reels up to 15–20 minutes. — Metricool
- Keeping critical text and visuals inside a central safe zone prevents Instagram's caption and interface overlays from covering them, since the UI reserves the top and bottom of the frame. — Kreatli
Generate Reel-ready vertical video
Skip the crop-and-pray workflow. Seedance 2.0 generates native 9:16 1080p clips — set vertical once and export a Reel that fills the frame, watermark-free.
12-month credits · no subscription required · watermark-free