Aspect Ratio Calculator

Aspect Ratio = Width ÷ Height, simplified to the lowest terms (e.g., 16:9).

What this calculator does

Common ratios: 16:9 (widescreen), 4:3 (standard), 1:1 (square), 9:16 (stories).

Frequently asked questions

What is the most common aspect ratio?

16:9 is the standard for monitors, TVs, and YouTube videos.