Guide

The Best Instagram Post Size in 2025 for Stories, Carousels, and Ads

Explore the best Instagram dimensions for your posts, stories, and more. Learn how to optimize your content for maximum engagement and aesthetic appeal.

best instagram post dimension sizes

Instagram has transformed from a simple photo-sharing app to a substantial platform in social media marketing and personal branding. Understanding the best Instagram dimensions is crucial for anyone looking to make an impact. This guide dives into the specifics of Instagram's various features, offering insights into how you can optimize your content for both engagement and visual appeal.


Instagram Dimension Sizes

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1. Instagram Feed Post Dimensions

Instagram supports a variety of post types, and understanding the right dimensions for each is key to making your content pop.

  • Square Posts: The classic Instagram square post remains popular, with a recommended size of 1080 x 1080 pixels and a 1:1 aspect ratio. Perfect for symmetrical images, these posts offer a clean, uniform look on your profile grid.

  • Landscape Posts: For wider images, like scenic landscapes or group photos, the landscape format is ideal. Aim for 1080 x 566 pixels (1.91:1 aspect ratio) to capture the breadth of your scene without sacrificing clarity.

  • Portrait Posts: When your subject is tall or you want to create a more immersive experience, go for portrait posts. The optimal size is 1080 x 1350 pixels with a 4:5 aspect ratio, great for full-length photos or detailed shots.

2. Instagram Story Size

Stories are Instagram's way of letting you share moments that are more fleeting. For the best visual impact, use 1080 x 1920 pixels (9:16 aspect ratio). This size fills the entire screen, providing an engaging, full-screen experience for your viewers.

3. Instagram Reels Size

Reels have taken the platform by storm, offering a dynamic way to share short-form videos. Stick to 1080 x 1920 pixels (9:16 aspect ratio) for crisp, clear videos that grab attention. Remember, Reels can range from 5 to 90 seconds in length.

4. Instagram In-Feed Video Sizes

Videos in your feed should align with the sizes of image posts:

  • Square Videos: 1080 x 1080 pixels (1:1)

  • Horizontal Videos: 1080 x 1350 pixels (16:9)

  • Portrait Videos: 1080 x 608 pixels (5:4)

5. Instagram Ad Video Sizes

For ad videos, the recommended resolution is 1080 x 1080 pixels. The aspect ratio can vary from 16:9 to 4:5, but 9:16 is ideal. Keep video lengths between 1 to 60 seconds and file sizes under 250MB.

6. Instagram Carousel Size

Carousels let you share a series of images or videos in a single post. Each piece within the carousel should be 1080 x 1080 pixels (1:1 aspect ratio) to maintain consistency and quality.

7. Profile Picture Size

Your profile picture might be small, but it's mighty in making first impressions. The ideal resolution is 180 x 180 pixels with a 1:1 aspect ratio.

8. IGTV Cover Photo Size

For IGTV, the cover photo should have a 1:1.55 aspect ratio and a resolution of 420 × 654 pixels, ensuring your content is presented attractively both in the feed and on your profile.


Closing

If you want to go the save route, choose the dimension 1080 x 1080 pixels.

Keeping track of the latest tips for the perfect image and video sizes on Instagram can really make your posts pop! It's all about making your content look slick and engaging, so it fits right in with the Instagram vibe. Plus, being consistent with the size of your posts can make a huge difference in how your profile looks and feels to your followers. It's a simple touch that can seriously boost your Instagram game!

If you want to save hours creating social media content, check out our premium library for founders and marketers.


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Brand questionnaire
Brand voice
Professional, authoritative
Target audience
B2B SaaS founders
Visual style
Minimal, high contrast
--brand-primary#268CFF
--voiceauthoritative
--audienceB2B-founders
Primary
Surface
Accent
Success
brand_context.json
Researching trends
B2B content marketing trends 2026SaaS automation ROI benchmarksCarousel vs single image engagement
5 automation metrics that separate scaling companies
data_visualization
Why most B2B brands waste 80% of their content budget
headline
The carousel format advantage: a visual breakdown
dynamic
Searching the web
Generating content
dynamic
headline
illustration
data_visualization
5 automation metrics that separate scaling companies
Data-driven analysis of operational efficiency benchmarks
12.4h
Time saved
per week
68%
Cost reduction
vs agency
150
Post volume
per month
94%
Approval rate
first pass
Source: usevisuals content performance analysis, 2025
Content approval
data_visualization
5 platforms
5 automation metrics that separate scaling companies
Data-driven analysis of operational efficiency benchmarks across 500 B2B companies.
Pending approval
in
ig
pi
x
tt
Publishing
in
LinkedInQueued
ig
InstagramQueued
pi
PinterestQueued
x
XQueued
tt
TikTokQueued

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