Ratio Calculator

Aspect ratio calculator for responsive images, videos, and UI components. Pick presets like 16:9, 4:5, or 9:16, enter width or height, and get the matching dimension instantly.

Aspect Ratio Calculator

1.78 : 1

Choose ratio

WidthSwapHeight

Hold Shift and use the arrow keys to nudge by 8.

Enter width and height to see size overview.

Website viewportmeasuring...

Viewport preset

Section: auto

Enter width and height to see this frame inside a page.

Viewport