Aspect Ratio Calculator — Width, Height & Ratio Tool

Calculate aspect ratios from pixel dimensions, or find width/height from a ratio. Includes common presets.

Help Us Improve
Be the first to rate!

Frequently Asked Questions

How do I use Aspect Ratio Calculator?
Enter two dimensions (width and height). The tool calculates the aspect ratio, simplifies it, and finds equivalent sizes.
Is Aspect Ratio Calculator free?
Yes, Aspect Ratio Calculator on ToolPix is 100% free with no signup or installation required.
Is my data safe?
All processing happens in your browser, your data never leaves your device.
What aspect ratios are common?
16:9 (widescreen video), 4:3 (old TV), 1:1 (square), 9:16 (portrait video/stories), 2:3 (photo print), and 3:2 (DSLR sensor).
Can I find the height given width and ratio?
Yes — enter the width and the desired ratio and the calculator outputs the correct height to maintain that ratio.