Aspect Ratio
Enter a known width or height with a target ratio — get the missing dimension instantly, plus simplified ratio and common preset sizes.
FAQ
How do I find my image's aspect ratio?
Enter its width and height — the tool simplifies it to the smallest whole-number ratio (1920×1080 → 16:9).
Which presets are included?
16:9 (HD video), 4:3 (classic), 1:1 (social posts), 9:16 (stories/reels), 3:2 (photos) and 21:9 (ultrawide).
Can I use it for video letterboxing?
Yes — compute the exact width or height needed to fit a video into a frame without distortion.