๐ผ๏ธAspect Ratio Calculator
Solve a missing dimension from any ratio, or simplify a resolution โ with a live preview.
Free Aspect Ratio Calculator โ Keep Proportions Perfect
Resizing an image or video without squashing it? Our free Aspect Ratio Calculator keeps your proportions perfect. Enter an aspect ratioโlike 16:9โplus one dimension, and it instantly works out the matching width or height, so your content scales cleanly with no stretching or distortion. Change either value and the other follows the locked ratio automatically.
It works the other way too: type in any width and height, such as 1920ร1080, and it simplifies them to the cleanest ratio for you. Quick presets cover the formats you use mostโ16:9, 4:3, 21:9, square 1:1, and vertical 9:16โand a live preview box shows the proportion at a glance. Whether you're designing graphics, cropping photos, setting up video, or laying out a screen, you'll get exact, in-proportion dimensions every time.
Simply enter a ratio and a dimension to see the rest instantly. No sign-up, no downloads, no limitsโjust accurate results whenever you need them.