Instagram Reel Size Checker
Check whether your video file matches Instagram's recommended 1080×1920 Reel resolution before you upload.
Your file
No file checked yet
Instagram target — Reel
1080 × 1920px
ratio 0.563 (9:16)
Max 4000MB · MP4, MOV
- Max length 90 seconds for most placements.
- Frame rate 30fps recommended.
Result looking good? Take it further with Grohubz — your Instagram growth toolkit.
How this tool works
Reels are full-screen 9:16 video. Upload something off-ratio and Instagram will crop or letterbox it automatically — usually cutting off exactly the part you wanted visible. Check your file's dimensions here first.
- Select your video file (checked locally in your browser — nothing uploads anywhere).
- Review the detected width, height and aspect ratio.
- Compare it against the 1080×1920 (9:16) recommendation.
- Re-export in your editor if the ratio doesn't match.
Tips to get better results
- Shoot vertically from the start where possible — upscaling a landscape clip to fill 9:16 loses sharpness.
- Keep key action centred; Instagram's UI overlays the top and bottom of the frame.
- Export at 30fps and H.264 for the most reliable playback quality after Instagram's compression.
Grow the account you just optimised
Grohubz gives creators and brands the growth playbooks, content calendars and analytics dashboards that turn a well-sized post into consistent follower growth.
Visit GrohubzFrequently asked questions
What is the correct Reel resolution?
1080×1920 pixels, a 9:16 aspect ratio, is Instagram's recommended Reel size.
What happens if my video isn't 9:16?
Instagram will letterbox (add bars) or crop the video to fit the 9:16 player, which can cut off subjects near the edges.
What's the maximum Reel length?
Most accounts can post Reels up to 90 seconds long, though this has expanded over time — check the composer for your account's current limit.
FREE TOOL BY GROHUBZ
Want the strategy to match the specs? Grohubz helps you plan, schedule and grow on Instagram — not just measure it.
This checker is built and maintained by the team at grohubz.com.