You already know visuals do the heavy lifting on social media. People scan a feed in seconds, and a crisp image or a quick video stops the scroll far faster than a wall of text ever could. But here's the part many small-business owners miss in 2026: even a great image can fall flat if it's sized wrong for the platform you're posting to. Crop a photo poorly and your logo disappears. Upload the wrong dimensions and the app squishes, stretches, or auto-crops your work into something you'd never have chosen.
The good news is that getting this right isn't complicated. Once you know the ideal width, height, and orientation for each network, you can make every post look intentional and professional. Below is a practical, current cheat sheet for the platforms that matter most this year.
Why Vertical Now Rules
The single biggest shift to keep in mind: vertical is the default. With short-form video like Reels, TikTok, and YouTube Shorts dominating reach, the 9:16 vertical format (1080 x 1920 pixels) is now the workhorse size across most feeds. If you only optimize one thing this year, make your video and Stories content full-screen vertical. Square (1:1) and portrait (4:5) still work well for photo posts, but landscape images increasingly get squeezed into a smaller slice of the screen on mobile.
Instagram rewards tall, mobile-first content. Use these as your go-to sizes:
- Feed photo (portrait): 1080 x 1350 px (4:5) — takes up the most space in the feed.
- Square photo: 1080 x 1080 px (1:1).
- Reels and Stories: 1080 x 1920 px (9:16). Keep text and key elements in the center so they aren't hidden by the interface or trimmed in the grid preview.
- Profile photo: at least 320 x 320 px.
TikTok
TikTok is vertical-only territory. Shoot and export at 1080 x 1920 px (9:16) for full-screen video. Leave breathing room around the edges so captions, buttons, and your handle don't cover anything important. A clear, well-lit first frame doubles as your thumbnail, so make it count.
Facebook is flexible, but mobile viewing still drives the experience:
- Feed image: 1080 x 1350 px (portrait) or 1200 x 630 px (landscape) work well; portrait commands more screen space.
- Reels and Stories: 1080 x 1920 px (9:16).
- Shared link preview: 1200 x 630 px.
- Cover photo: roughly 820 x 312 px, but preview it on mobile, where the edges get cropped.
LinkedIn has leaned hard into video and carousels, so don't treat it as a text-only network:
- Feed image: 1200 x 1500 px (portrait) or 1200 x 627 px (landscape).
- Vertical video: 1080 x 1920 px (9:16) for the best mobile reach.
- Link share image: 1200 x 627 px.
- Cover/banner: 1584 x 396 px.
- Logo/profile: 400 x 400 px.
X (formerly Twitter)
On X, a single landscape image at 1200 x 675 px (16:9) displays cleanly in the timeline. Vertical video performs strongly here too, so 1080 x 1920 px is a smart choice for clips. The header image sits around 1500 x 500 px, and your profile photo should be at least 400 x 400 px.
Pinterest is built for tall images. Aim for a 2:3 ratio, such as 1000 x 1500 px — pins this shape get far more visibility than short or wide ones. Pinterest is also a genuine search engine, so add a clear title and keyword-rich description to help people (and AI search tools) find your content.
YouTube
For standard videos, upload at 1920 x 1080 px (16:9) with a 1280 x 720 px thumbnail. For Shorts, stick with the familiar 1080 x 1920 px (9:16). A bold, readable thumbnail is still one of the biggest factors in whether someone clicks.
A Few Habits That Keep Your Visuals Sharp
- Design vertical-first. When in doubt, create at 1080 x 1920 px and crop down. It's easier to trim a tall image than to rescue a wide one.
- Keep the important stuff centered. Logos, faces, and text near the edges are the first things to get cropped or covered by buttons.
- Always preview on a phone. Most of your audience is on mobile, so check there before you publish.
- Use AI tools to resize, don't reinvent. Plenty of 2026 design apps will auto-resize one graphic into every platform's dimensions in seconds. Let them handle the busywork.
- Add descriptive alt text and captions. Beyond accessibility, this helps your posts surface in AI-powered search and answer engines.
Sizing images correctly is one of those small details that quietly separates a polished brand from an amateur one. If keeping up with every platform's specs feels like one more job you don't have time for, that's exactly what we do. At $99 Social, our team creates, sizes, and posts professional content for your business every month — so your visuals always look their best, on every network, without you lifting a finger.
