Aspect Ratio Calculator
Calculates width or height based on an aspect ratio.
Calculate missing pixel dimensions from an aspect ratio, or calculate the exact aspect ratio (e.g., 16:9) from pixel values.
Calculated Aspect Ratio
How does this tool work?
Calculates missing image or video dimensions based on a fixed aspect ratio.
Choose a standard aspect ratio or enter your own width and height ratio values. Then enter a known width or height in pixels to calculate the other dimension live.
Where are my data processed?
100% Client-Side: Your data never leaves your browser.
All calculations, conversions, encodings, and file processing of this tool are executed exclusively locally via JavaScript on your client device. No inputs, passwords, cryptographic keys, texts, or uploaded files are ever sent to our servers or third parties. Once the page is loaded, the tool remains completely functional even offline.