AI Image Size Calculator
ZSky AI's ai image size calculator produces high-quality 1080p images in about 2 seconds on dedicated NVIDIA RTX 5090 GPUs. unlimited generation, free forever, no credit card required, free-tier images carry a small zsky.ai mark while paid plans are fully clean. Full commercial use on every plan including the free tier. Starter ($19/month) is ad-free with instant generation on the full 12-GPU cluster.
Select a use case to see the exact pixel dimensions, aspect ratio, recommended AI model, and estimated credits. Need print? Enter physical dimensions and DPI for precise pixel calculations.
Results
Common Social Media Image Sizes
| Platform | Type | Dimensions (px) | Aspect Ratio |
|---|---|---|---|
| Square Post | 1080 x 1080 | 1:1 | |
| Portrait Post | 1080 x 1350 | 4:5 | |
| Story / Reel | 1080 x 1920 | 9:16 | |
| Landscape | 1080 x 566 | 1.91:1 | |
| Post Image | 1200 x 630 | 1.91:1 | |
| Cover Photo | 1640 x 624 | 2.63:1 | |
| Event Cover | 1920 x 1005 | 1.91:1 | |
| Twitter / X | In-Stream Image | 1600 x 900 | 16:9 |
| Twitter / X | Header | 1500 x 500 | 3:1 |
| YouTube | Thumbnail | 1280 x 720 | 16:9 |
| YouTube | Channel Banner | 2560 x 1440 | 16:9 |
| Post Image | 1200 x 627 | 1.91:1 | |
| Cover Photo | 1584 x 396 | 4:1 | |
| Standard Pin | 1000 x 1500 | 2:3 | |
| Long Pin | 1000 x 2100 | 1:2.1 | |
| TikTok | Post / Video | 1080 x 1920 | 9:16 |
| Threads | Post Image | 1080 x 1350 | 4:5 |
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