Free Online Aspect Ratio Calculator
Find the ratio of any width and height, or calculate a missing dimension.
Use a ratio instead of stretching images. For social media, check the platform's recommended dimensions before exporting.
About the Aspect Ratio Calculator
Free aspect ratio calculator. Simplify image and video dimensions to ratios like 16:9 and calculate new sizes without stretching.
How to use this tool
Use the controls above to enter your values, choose your options, and view the result. The tool updates as you work, and the result can be copied or downloaded where supported.
Frequently asked questions
Is this tool free?
Yes. Every tool on ImGenerate is free to use and does not require an account.
Is my data safe?
Tools that run entirely in the browser keep your data on your device. Any server-backed lookup is noted in the tool and only sends the information needed for the result.