Aspect Ratio Calculator


Your aspect ratio is:

How to Use This Tool

  • Enter the values for the original width (W1) & original height (H1) on the left.
  • Enter either a new width (W2) or new height (H2) on the right to calculate the remaining value.
  • Change any of the values at any time, or reset them to the starting values.


If you have a photo that is 2160 x 3840 pixels, but your website only has space for a photo 1920 pixels wide. To find the new height of your photo — while preserving the aspect ratio — you would need to do the following calculation:

(original height / original width) x new width = new height 

(2160 / 3840) x 1920 = 1080

Pro Tip: You can share your current input by using the button below

This Tool is not Working Correctly?