Vertical ratio calculator
9:16 is the standard vertical format for short-form video and full-screen mobile creative.
Live preview follows the selected ratio.
Calculator
Choose a ratio, enter width or height, and the calculator fills the matching dimension while keeping the image or video proportional.
Use these sizes as starting points. Exact platform requirements can change, so treat the calculator as the proportional reference and check the final upload screen before publishing.
| Use case | Pixel size | Ratio |
|---|---|---|
| 720p vertical | 720 x 1280 | 9:16 |
| 1080p vertical | 1080 x 1920 | 9:16 |
| 1440p vertical | 1440 x 2560 | 9:16 |
| 2160p vertical | 2160 x 3840 | 9:16 |
The table below updates when you choose a new ratio. It is useful for planning responsive images, thumbnails, and video exports.
| Width | Matching height | Size |
|---|
Design with mobile UI overlays in mind.
Keep captions readable on small screens.
Use center-weighted composition for cross-posting.
This reference chart shows how common frames compare. Use it when deciding whether a creative should be wide, square, portrait, or ultrawide.
