Easily compute the missing width or height to maintain a specific aspect ratio, or scale an existing size up/down by a percentage. Pre‑loaded with all common aspect ratios (16:9, 4:3, 1:1, 3:2, 21:9, 9:16) plus the ability to enter a custom ratio. Perfect for photographers, video editors, and web designers who need pixel‑perfect dimensions without leaving their browser.
Yes. Enter the original width and height, then select the scaling percentage field. The tool will show the exact pixel values at that percentage, maintaining the original ratio.
Simply select your desired aspect ratio, type in the known dimension, and the calculator will output the missing side in pixels.
Absolutely. Presets include 16:9, 4:3, 21:9, and 9:16 (vertical), and you can manually input any ratio like 2.35:1 for cinema.