The Ultimate 2025 Social Media Size Guide: Perfectly Cropped, Every Time

Say hello to the 2025 Instagram Dimensions Guide—

Your ultimate cheat sheet for the key file sizes across 6 major platforms. With this, you can ensure your posts hit the mark by aligning perfectly with the latest dimensions.

Below are the updated 2025 standards for all major platforms—*important to ensure your text and images aren’t cropped off in the feed.

Big news: Instagram has officially ditched its iconic 1:1 square grid

The new layout is now a 4:5 rectangular. While this gives posts more vertical space in the feed, it’s causing some headaches for accounts that relied on square images.

You can see how the new 4:5 feed affects the previous 1:1 posts.

For brands and creators, this change can cut off key text or design elements, leaving profiles looking unpolished and some carefully planned messaging lost. If you’ve noticed your grid looking a little 'off,' it might be time to rethink your content strategy to fit the new format.

Why Instagram most likely changed the feed grid from 1:1 to 4:5

Instagram had already embraced a similar rectangular aspect ratio for the Reels tab, so this change is likely part of their push to prioritize video and vertical content. By aligning feed posts with their Reels format, Instagram is doubling down on creating a seamless, mobile-first experience that keeps users engaged longer.

Quick Solutions Right Now!

You can tap on the three dots at the top right of your chosen post and select "Adjust Preview." Then, tap "Fit." Once you do that, it will change to "Fill," allowing you to choose between a white or black background.

Doing this ensures that any text in your post remains visible to viewers scrolling through your feed. However, the best solution is to redo important posts or, moving forward, stick with the new 4:5 format.

Other platform dimension guidelines:

See the other platform dimensions! These ratios will help make sure you don’t miss anything.

The slides above are sourced from Typetopia’s IG Post.

Overview:

Some are happy, while others aren’t thrilled with the new ratio changes. However, as Instagram continues to dominate as a leading platform, it’s clear they’re setting the tone for the future they’re planning. Eventually, others will likely follow suit, and the change will be forgotten in a few years. With the rest of the updated dimensions, this guide should keep you up to speed and help you avoid any issues.