Aspect Ratio Conversions

Calculate pixel dimensions for aspect ratios like 4:3, 16:9, and 21:9.
Find width or height from one dimension for video production, printing, and web design.

Aspect Ratio Calculator

Calculate pixel width or height for any aspect ratio including 4:3, 16:9, 21:9, and custom ratios. Enter one dimension to get the other.

Embed This Calculator

Copy the code below and paste it into your website or blog.
The calculator will work directly on your page.