What's the best size for Instagram Reels?

There is no single ideal file size for every Reel. Keep the correct aspect ratio, at least 720p and at least 30fps, then choose a smaller file when upload speed matters.

Compress Video for Instagram

Instagram re-encodes everything you upload, but huge source files upload slowly and fail on weak connections. Compressing to a sensible size first makes uploads faster and more reliable while staying above Instagram's own output quality.

Tap to choose a video, or drag & drop

Choose FileProcessed 100% in your browser. Your file never leaves your device.

Maximum output sizeMB

Why the 50MB limit exists

Instagram recommends Reel uploads with at least 30 frames per second and at least 720-pixel resolution. This preset keeps a compatible 1080p/30fps ceiling while reducing transfer size; final appearance can still change when Instagram processes the upload.

Sources: Instagram Reel requirements · Reviewed 2026-06-13

Frequently asked questions

What's the best size for Instagram Reels?: There is no single ideal file size for every Reel. Keep the correct aspect ratio, at least 720p and at least 30fps, then choose a smaller file when upload speed matters.

Other compression presets

Discord (10MB)Gmail / Outlook (25MB)WhatsApp (16MB)Telegram (50MB)Slack (50MB)X / Twitter (50MB)iMessage (100MB)Outlook (20MB)LinkedIn (100MB)Google Drive (100MB)Canvas / LMS (50MB)