All tools
Design · ready

Aspect Ratio Calculator

Reduce image or video proportions and calculate a matching target dimension.

Loading local tool…
No uploadsYour files stay on this device.
Local engineYour browser does the work.
Auto cleanupTemporary memory is released.
About this tool

Use aspect ratio calculator without uploading files

Reduce image or video proportions and calculate a matching target dimension. Aspect Ratio Calculator runs in the current browser session, giving you a direct result without sending the source to a Filemazing processing server.

Processing takes place in your browser tab. Temporary working data is released when you leave or reload the page.

Three steps
  1. Enter the values and units requested by Aspect Ratio Calculator.
  2. Check that each source and target unit describes the intended measurement.
  3. Calculate the result, then copy the value you need.
Useful for

Common calculate aspect ratio tasks

  • Using calculate aspect ratio without an upload queue
  • Building consistent interface styles
  • Checking design calculations
Practical details

What to know before you start

Accepted input

Values entered directly into the Aspect Ratio Calculator form

Created output

A calculated calculate aspect ratio result

Tips and limitations
  • Browser rendering can vary slightly across operating systems and display settings.
  • Test generated CSS in the actual layout and supported browser range.
  • Review the Aspect Ratio Calculator result before using it in an important workflow.