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Social media post sizes.
Find the size, check your file and preview the crop for Instagram, YouTube, TikTok and Meta ads. Every number links to the platform’s own help page, and third-party figures are labelled as guides.
Every shape, drawn to scale
- 15formats
9:16Full-screen vertical
- 1format
1:1.55Reel cover
- 1format
3:4Tall portrait
- 3formats
4:5Portrait
- 5formats
1:1Square
- 2formats
16:9Widescreen
- 1format
1.91:1Landscape
The 28 formats on these checkers come down to 7 shapes. 15 of them are 9:16, at sizes from 540 × 960 to 2160 × 3840.
Pick a checker
Drop in a photo or video to see whether it fits, how it will be cropped, and download a copy at the right size.
- Instagram post size1080 × 1350 px (4:5), or 1080 × 1440 px (3:4) for the tallest postOpen checker
- YouTube thumbnail size3840 × 2160 px (16:9), at least 640 px wide, under 2 MB from a phone or 50 MB from a computerOpen checker
- Instagram Story size1080 × 1920 px (9:16, the size guides recommend) for a Story, or 1440 × 2560 px (9:16) for a Story adOpen checker
- Instagram Reel size1080 × 1920 px (9:16, the size guides recommend), up to 20 minutes; the cover is 420 × 654 pxOpen checker
- TikTok video size1080 × 1920 px (9:16, the size guides recommend), at least 720 px wide, up to 60 minutes; In-Feed ads need at least 540 × 960Open checker
- Meta ad specs1440 × 1800 px (4:5) for Facebook and Instagram Feed images, 1440 × 2560 px (9:16) for Stories and ReelsOpen checker
Every size, in one table
Recommended export sizes, checked 16 October 2026. Each checker explains the limits and conflicts behind them.
| Format | Pixels | Shape | Source |
|---|---|---|---|
| Instagram post size | |||
| Portrait 4:5 | 1080 × 1350 | 4:5 | Instagram Help Center |
| Tall portrait 3:4 | 1080 × 1440 | 3:4 | Instagram Help Center |
| Square 1:1 | 1080 × 1080 | 1:1 | Instagram Help Center |
| Landscape 1.91:1 | 1080 × 566 | 1.91:1 | Instagram Help Center |
| YouTube thumbnail size | |||
| Video thumbnail 16:9 | 3840 × 2160 | 16:9 | YouTube Help |
| Shorts thumbnail 9:16 | 2160 × 3840 | 9:16 | YouTube Studio Help (en-IN) |
| Instagram Story size | |||
| Story 9:16 | 1080 × 1920 | 9:16 | BufferGuide |
| Story ad 9:16 | 1440 × 2560 | 9:16 | Meta Ads Guide |
| Instagram Reel size | |||
| Reel 9:16 | 1080 × 1920 | 9:16 | BufferGuide |
| Reel cover | 420 × 654 | 1:1.55 | Instagram Help Center |
| Cover 9:16 | 1080 × 1920 | 9:16 | BufferGuide |
| Reel ad 9:16 | 1440 × 2560 | 9:16 | Meta Ads Guide |
| TikTok video size | |||
| TikTok video 9:16 | 1080 × 1920 | 9:16 | HootsuiteGuide |
| TikTok cover | 1080 × 1920 | 9:16 | Social ToolshedGuide |
| In-Feed ad 9:16 | 540 × 960 minimum | 9:16 | TikTok Ads Manager |
| In-Feed ad 16:9 | 960 × 540 minimum | 16:9 | TikTok Ads Manager |
| In-Feed ad 1:1 | 640 × 640 minimum | 1:1 | TikTok Ads Manager |
| Meta ad specs | |||
| Facebook Feed | 1440 × 1800 | 4:5 | Meta Ads Guide |
| Instagram Feed image | 1440 × 1800 | 4:5 | Meta Ads Guide |
| Instagram Feed video | 1080 × 1920 | 9:16 | Meta Ads Guide |
| Instagram Stories ad | 1440 × 2560 | 9:16 | Meta Ads Guide |
| Facebook Stories ad | 1440 × 2560 | 9:16 | Meta Ads Guide |
| Instagram Reels ad | 1440 × 2560 | 9:16 | Meta Ads Guide |
| Facebook Reels image | 1440 × 2560 | 9:16 | Meta Ads Guide |
| Facebook Reels video | 1440 × 2560 | 9:16 | Meta Ads Guide |
| Facebook right column | 1080 × 1080 | 1:1 | Meta Ads Guide |
| Facebook Marketplace | 1080 × 1080 | 1:1 | Meta Ads Guide |
| Carousel | 1080 × 1080 | 1:1 | Meta Ads Guide |