Aspect Ratio Calculator

Find the simplified aspect ratio of any size, and scale width or height while keeping proportions locked. Handy for images, video and screens.

How to use

1. Enter the original width and height.
2. Type a new width or height — the other fills in automatically.

Frequently asked questions

What is an aspect ratio?

It is the proportional relationship between width and height, like 16:9 for widescreen video.

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