Instagram post sizes: Ultimate guide to Instagram dimensions & sizes for photos, reels, & stories in 2025

Instagram 2025 Size Guide: Let your content shine in the vertical world!

Instagram’s vertical update in 2024 is like re-arranged your room furniture, disrupting carefully curated square grids. But changes are inevitable, and this update is not completely useless. It is more suitable for telling stories, displaying beautiful pictures, and making full use of video content. Let's dive into the Instagram size for 2025 and provide some tips to make your content more dazzling.

Detailed explanation of Instagram post size

Instagram is now fully adapted to vertical content. If you still stick to square or horizontal pictures, it's time to upgrade. Vertical (4:5) is the new gold standard because it occupies more screen space, which means it can attract more viewers’ attention.

Here is a quick overview of Instagram post sizes:

Content Type	Size (pixels)	Aspect Ratio	Advantages
Square Posts	1080 x 1080	1:1	Classic, but slightly outdated now
Portrait posts	1080 x 1350	4:5	More eye-catching in mobile information flow
Horizontal posts	1080 x 608	16:9	Suitable for wide-format photos
Stories/Reels	1080 x 1920	9:16	The best full-screen immersive experience

Ideal Instagram post size

If you still stick to square posts, now is the time to change. Portrait posts (1080 x 1350 pixels) are the best choice. Not only do they occupy more screen space, they are more eye-catching. Whether it is a book picture, landscape photo or pet photo, vertical format can add charm to your content.

Advantages of vertical proportions:

• Take up more screen space and attract users' attention.
• It feels modern and immersive, which is consistent with the way we hold our phones.
• Provides greater creative space.

Carousel posts

If you like to share multiple photos or videos, carousel posts are your new choice. Since 2024, Instagram has allowed a single carousel post to contain up to 20 content. This format is perfect for creative storytelling. However, remember that the aspect ratio of the first image or video determines the style of the entire carousel post.

Aspect Ratio: 16:9 vs. 4:3 vs. 4:5

Choosing the right aspect ratio is like choosing an adventure game, each ratio has its own specific purpose:

• 4:5 (Portrait): The new favorite on Instagram, which takes up the most vertical space and lets your content stand out when scrolling.
• 16:9 (Horizontal): Suitable for wide-view photos, landscape photos or video content. In information flow and grid, it may appear to be a little smaller than other formats.
• 4:3 (traditional): Not very common, but useful for some visual effects.
• 9:16 (full screen vertical): The best choice for Stories and Reels, it fills the entire phone screen.

Instagram Stories & Reels Size

Size: 1080 x 1920 pixels or 9:16 aspect ratio (photos and videos).

Stories and Reels are fun places. For the best full-screen mobile experience, stick to 9:16 aspect ratio or 1080 x 1920 pixels. Reels can range from 15 seconds to 15 minutes in length and can upload MP4 or MOV file formats.

Optimize Instagram Reels and Stories

Remember, Instagram will automatically crop your Reel or video to a 4:5 vertical scale, which is the thumbnail your audience sees when viewing your profile grid. Center all important information and avoid putting anything you might not see when cropping near the edge.

Improve video quality

1. In your profile, click on the three horizontal bars in the upper right corner.
2. Go to Settings and Privacy.
3. Scroll down to Media Quality.
4. Open Upload at the highest quality.

I also stick with 1080p with a frame rate of 24 or 30 frames per second. Uploading large 4K files seems like a good idea, but Instagram compresses them to make them look worse.

High-quality visual effects on social media platforms: App reviews

I'll share four of my favorite apps:

• Squash: Used to quickly and easily fix image size and compression.
• Capto: My preferred tool for screen recording and video editing.
• PhotoBulk: Bulk edit photos (resize, watermark, rename).
• TouchRetouch: Quickly repair photos and delete unwanted objects.

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Summarize

Understanding Instagram size is essential to creating a perfect profile. With the right app, you can easily create high-quality content to attract more attention.

FAQ

• Is Instagram 16:9 or 4:3? Instagram supports 16:9 landscape videos, but also supports other proportions.
• What is the standard size for Instagram? Information flow posts: 1080 x 1080 pixels (square), 1080 x 1350 pixels (portrait), 1080 x 608 pixels (landscape); Reels/Stories: 1080 x 1920 pixels (vertical).
• What is the best image size for Instagram? Information flow posts: 1080 x 1350 pixels (4:5); Stories and Reels: 1080 x 1920 pixels (9:16).

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