Calculate proportional dimensions for your media!
Aspect Ratio: -
Scaled Height for 1920px Width: -
Every image, video, poster, or display layout has a shape, not just a size. That shape β the proportional relationship between width and height β is what we call the aspect ratio. And getting it wrong can destroy a design. A stretched YouTube thumbnail, a cropped movie frame, a cut-off banner, or a squashed product image can completely ruin the viewer experience.
The Free Aspect Ratio Calculator by AlllinTools makes resizing media fast and flawless. It ensures every image or video maintains its original shape while fitting perfectly into a new size β no distortion, no quality loss, no guesswork.
π Enter width or height β The calculator instantly finds the matching value based on the exact original ratio.
Digital content deserves correct proportion β this tool makes that effortless.
| Aspect Ratio | Where Itβs Used |
|---|---|
| 1:1 | Instagram posts, icons, product shots |
| 4:3 | Old TVs, early camera photos, PowerPoint |
| 16:9 | Modern monitors, HDTV, YouTube videos |
| 21:9 | Cinema screens, ultrawide monitors |
| 9:16 | Vertical Reels/Shorts/TikTok |
Aspect ratio is the silent controller of user experience.
AlllinTools solves these instantly:
No need to remember formulas.
No conversion mistakes.
Just perfect results every time.
| Platform | Ratio | Recommended Use |
|---|---|---|
| YouTube | 16:9 | Standard HD Video |
| TikTok / Reels / Shorts | 9:16 | Vertical full-screen video |
| Instagram Feed | 1:1 | Posts that never crop |
| Movie Content | 21:9 (Ultra-Wide) | Cinematic media |
| DSLR Photography | 3:2 | Natural sensor capture |
| Laptops & TVs | 16:9 | Display default |
π 100% local browser processing
π No tracking
π« No cloud upload
The Free Aspect Ratio Calculator by AlllinTools helps you:
β Resize media without distortion
β Protect layout integrity
β Improve multi-platform compatibility
β Speed up production workflows
β Achieve pixel-perfect results every time
π¨ Make your media perfectly proportional:
β¨ Aspect Ratio Calculator β Only on AlllinTools.com