What aspect ratio does Instagram use?
Instagram supports multiple aspect ratios depending on the content type, but the platform's requirements have evolved over the years. Here's everything you need to know about Instagram aspect ratios.
Instagram Feed Posts:
Supported Aspect Ratios:
- 1:1 (Square): 1080 x 1080 pixels - Classic Instagram format
- 4:5 (Portrait): 1080 x 1350 pixels - Maximum vertical space
- 1.91:1 (Landscape): 1080 x 566 pixels - Widest allowed
Most Popular:
- 4:5 (Portrait): Takes up most screen space on mobile
- Recommended resolution: 1080 x 1350 pixels
- Best for engagement and visibility
1:1 (Square) - The Classic:
- Original Instagram format
- Resolution: 1080 x 1080 pixels
- Still widely used
- Safe choice, always works
- Equal visibility in all orientations
4:5 (Portrait) - Most Popular:
- Resolution: 1080 x 1350 pixels
- Taller format
- Takes up more mobile screen real estate
- Better engagement than square
- Recommended by Instagram
1.91:1 (Landscape) - Widest Allowed:
- Resolution: 1080 x 566 pixels
- Horizontal format
- Smallest on mobile feeds
- Better for desktop viewing
- Less popular for engagement
Instagram Stories:
Aspect Ratio: 9:16 (vertical)
Resolution: 1080 x 1920 pixels
Full-screen: Vertical mobile format
Time Limit: 15 seconds per story segment
Stories take up the entire phone screen vertically, making them extremely immersive.
Instagram Reels:
Aspect Ratio: 9:16 (vertical)
Resolution: 1080 x 1920 pixels
Orientation: Vertical only
Maximum Length: 90 seconds (or 15/30/60 second options)
Reels use the same vertical format as TikTok and YouTube Shorts, optimized for mobile viewing.
Instagram IGTV / Long-Form Video:
Aspect Ratios Supported:
- 9:16 (Vertical): 1080 x 1920 pixels - Recommended
- 16:9 (Horizontal): 1920 x 1080 pixels - Also supported
Vertical (9:16) is recommended because it matches the mobile-first design of Instagram.
Instagram Carousel Posts:
Aspect Ratios: Same as regular feed posts
- 1:1 (1080 x 1080)
- 4:5 (1080 x 1350)
- 1.91:1 (1080 x 566)
Important: All images in a carousel should use the same aspect ratio, otherwise Instagram will crop them to match the first image's ratio.
Why Aspect Ratio Matters on Instagram:
Mobile Screen Real Estate:
- 4:5 takes up ~30% more screen than 1:1
- More visible = better engagement
- Taller posts get more attention
- Less scrolling needed to see full image
Algorithm Impact:
- Engagement affects visibility
- Larger posts often get more engagement
- Better initial impression
- More stopping power in feed
Professional Appearance:
- Consistent ratios look polished
- Matching ratios in carousels
- Proper composition
- No awkward crops
Best Practices by Content Type:
Product Photography:
- ✅Use 4:5: Shows product + context
- ✅Vertical composition: Room for product and branding
- ✅Consistent across posts: Professional brand look
Portraits:
- ✅Use 4:5: More room for full-body shots
- ✅Vertical orientation: Natural for human subjects
- ✅Better mobile viewing: Fills screen nicely
Landscapes:
- ✅1.91:1 or 1:1: Horizontal scenes work better
- ✅Panoramas: Wider ratios when necessary
- ✅Consider cropping to 4:5: For better feed visibility
Food Photography:
- ✅1:1 or 4:5: Both work well
- ✅Overhead shots: Square often perfect
- ✅Styled scenes: 4:5 gives more context
Infographics:
- ✅4:5 recommended: More reading space
- ✅Vertical layout: Natural scroll direction
- ✅Carousels for long content: Multiple 4:5 slides
Evolution of Instagram Aspect Ratios:
2010-2015: Only 1:1 (square)
2015: Landscape and portrait added
2016: Stories launched (9:16)
2018: IGTV added (9:16 and 16:9)
2020: Reels launched (9:16)
Instagram has evolved from square-only to mobile-first vertical content.
Technical Specifications:
Feed Posts:
- Minimum width: 320 pixels
- Maximum width: 1080 pixels
- Instagram will downscale larger images
- Maintains aspect ratio when scaling
- JPG or PNG format
Stories/Reels:
- Resolution: 1080 x 1920 pixels
- 9:16 aspect ratio
- Full-screen vertical
- Video or image
- 15-90 seconds (Reels)
File Size:
- Maximum 30MB for images
- Maximum 4GB for videos
- Compressed automatically
- High quality recommended
Common Mistakes:
- ❌Mixing Ratios in Carousels: Causes awkward cropping
- ❌Using 16:9 for Feed: Too small on mobile
- ❌Horizontal for Portraits: Wastes vertical space
- ❌Wrong Story Size: Gets cropped awkwardly
- ❌Too Much Text Near Edges: May be cut off
Optimal Resolutions Summary:
Feed (Portrait): 1080 x 1350 (4:5) - Recommended
Feed (Square): 1080 x 1080 (1:1)
Feed (Landscape): 1080 x 566 (1.91:1)
Stories: 1080 x 1920 (9:16)
Reels: 1080 x 1920 (9:16)
Profile Picture: 320 x 320 (1:1)
How to Choose:
When to use 1:1 (Square):
- Classic Instagram aesthetic
- Logo or brand posts
- Symmetrical compositions
- Overhead shots
- Safe, always works
When to use 4:5 (Portrait):
- Maximum visibility (recommended)
- Product photos with context
- Portrait photography
- Infographics
- Most content types
When to use 1.91:1 (Landscape):
- Horizontal landscapes
- Panoramic views
- Desktop-first content
- When width is essential
When to use 9:16 (Vertical):
- Stories
- Reels
- Full-screen mobile content
- Video content
- Immersive experiences
Cropping Strategy:
Shoot Wider Than Final:
- Leave room for cropping
- Different ratios for different platforms
- Flexibility in post-production
- Safe zones for important content
4:5 to Other Ratios:
- Crop to 1:1: Lose top and bottom
- Crop to 9:16 (Stories): Add background or extend
- Crop to 16:9: Significant vertical crop
Planning for Multiple Platforms:
Instagram + TikTok/YouTube Shorts:
- Shoot 9:16 for Stories/Reels
- Crop to 4:5 for feed posts
Instagram + YouTube:
- Shoot 16:9 for YouTube
- Crop to 4:5 for Instagram feed
- Use full 9:16 for Reels/Stories
Instagram + Pinterest:
- Shoot 2:3 for Pinterest
- Crop to 4:5 for Instagram
- Similar vertical orientations
Content Creator Tips:
For Maximum Engagement:
- Use 4:5 for feed posts (takes up most screen)
- Use 9:16 for Reels (full-screen mobile)
- Keep important elements centered (safe from cropping)
- Test different ratios (see what performs best)
- Stay consistent (professional brand appearance)
For Photography:
- Shoot in native camera ratio (often 3:2 or 4:3)
- Crop to 4:5 or 1:1 for Instagram
- Keep Instagram format in mind when composing
- Leave breathing room for crops
For Video:
- 9:16 is king on Instagram now
- Vertical video performs better
- Reels and Stories are priority
- Feed videos can be 1:1 or 4:5
Business Account Recommendations:
- ✅Feed: Primarily 4:5 (maximum visibility)
- ✅Stories: 9:16 daily engagement
- ✅Reels: 9:16 for reach and discovery
- ✅Carousels: Consistent 4:5 across all slides
- ✅Profile: Cohesive grid appearance
The Future:
Instagram continues moving toward:
- Vertical-first content (9:16)
- Video over photos (Reels priority)
- Full-screen experiences (immersive)
- Mobile-optimized (vertical formats)
4:5 feed posts remain the sweet spot for static images, while 9:16 Reels dominate video.
Calculate perfect Instagram dimensions with our aspect ratio calculator to ensure your content always looks its best.
Ready to Calculate Aspect Ratios?
Use our free aspect ratio calculator to find the perfect dimensions for your project.
Try the Calculator