Instagram Sizes & Dimensions Guide

Complete specifications for all Instagram content types. Get the exact dimensions, aspect ratios, and file requirements for Instagram in 2025.

Auto-optimize for InstagramTry Free

2025 SpecificationsLatest

Reels

2025

Complete guide to Instagram Reels dimensions, aspect ratios, and technical specifications for 2025. Optimize your Reels for maximum engagement with the right video size and format.

Dimensions:
1080×1920
Aspect Ratio:
9:16
Max Size:
4GB
Format:
MP4, MOV
View full specifications →

Stories

2025

Complete guide to Instagram Stories dimensions, formats, and specifications for 2025. Create engaging Stories with the perfect size and format for maximum visibility.

Dimensions:
1080×1920
Aspect Ratio:
9:16
Max Size:
4GB
Format:
MP4, MOV
View full specifications →

Feed

2025

Complete guide to Instagram feed post dimensions and image specifications for 2025. Optimize your feed posts with the perfect size and aspect ratio for maximum engagement.

Dimensions:
1080×1350
Aspect Ratio:
4:5
Max Size:
30MB
Format:
JPG, JPEG
View full specifications →

Instagram Content Best Practices

  • ✓Always use the recommended dimensions for better algorithm performance
  • ✓Optimize file sizes for faster loading and better user experience
  • ✓Test different aspect ratios to see what works best for your audience
  • ✓Use PostFast to automatically resize and optimize for Instagram

Perfect Instagram Posts Every Time

Never worry about Instagram dimensions again. PostFast automatically optimizes your content for maximum engagement.

Start Free Trial
✓ Auto-resize✓ Schedule posts✓ Analytics included