Updated July 29, 2026
Social media image sizes reference
A quick lookup of current recommended image sizes across the major platforms. Sizes shift over time, so treat these as solid defaults and export at the listed aspect ratio.
| Placement | Size (px) | Ratio |
|---|---|---|
| Square post | 1080 x 1080 | 1:1 |
| Portrait post | 1080 x 1350 | 4:5 |
| Story / Reel | 1080 x 1920 | 9:16 |
YouTube
| Placement | Size (px) | Ratio |
|---|---|---|
| Thumbnail | 3840 x 2160 | 16:9 |
| Channel banner | 2560 x 1440 | 16:9 |
| Short | 1080 x 1920 | 9:16 |
X, Facebook, LinkedIn, TikTok
| Placement | Size (px) | Ratio |
|---|---|---|
| X (Twitter) post | 1600 x 900 | 16:9 |
| Facebook cover | 820 x 312 | ~2.6:1 |
| LinkedIn banner | 1584 x 396 | 4:1 |
| TikTok video | 1080 x 1920 | 9:16 |
Export at the ratio, scale to the sizeThe aspect ratio matters more than exact pixels — an image at the right ratio scales cleanly. Match the ratio first, then export at or above the listed resolution.
References
Questions
What size is a YouTube thumbnail?
Use a 16:9 image. YouTube's current custom-thumbnail guidance prefers 3840 x 2160 pixels, with at least 640 pixels of width; keep the file under the upload target's file-size limit.
What is the best size for an Instagram post?
1080 x 1080 for a square, or 1080 x 1350 for a 4:5 portrait, which takes up more vertical space in the feed. Stories and Reels use 1080 x 1920 (9:16).