Aspect Ratio Calculator
View image dimensions and calculated aspect ratio with visual indicator, entirely in the browser.
Privacy first: Your files never leave your browser. All processing happens locally on your device.
Drop an image here or browse
PNG, JPEG, WebP, AVIF — max 50 MB
Upload an image to see its dimensions and aspect ratio.
Frequently Asked Questions
What aspect ratios are common?
Common ratios include 16:9 (widescreen), 4:3 (traditional), 1:1 (square), 3:2 (photography), and 21:9 (ultrawide).
How is the ratio calculated?
The tool finds the greatest common divisor of width and height, then divides both dimensions by it to get the simplest ratio form.
Is my image uploaded?
No. The image is analyzed locally in your browser. It never leaves your device.