Find the aspect ratio of your images instantly. Upload JPG, PNG, GIF, WebP, or BMP to detect dimensions and calculate aspect ratio.
or drop image here
Aspect ratio is the proportional relationship between an image's width and height. It's expressed as two numbers separated by a colon (width:height), such as 16:9 or 4:3. Understanding aspect ratios helps ensure your images display correctly across different devices and platforms.
Knowing your image's aspect ratio is crucial for responsive web design, video production, social media posting, and print layouts. Different platforms and devices require specific aspect ratios for optimal display, and this tool helps you quickly identify whether your image meets those requirements.
16:9 is the standard for HD video and most modern displays. 4:3 was common for older TVs and monitors. 1:1 (square) is popular on Instagram. 3:2 is typical for DSLR photos. 21:9 is ultra-wide for cinematic content.
Simply upload your image, and our tool instantly calculates its dimensions and aspect ratio. It uses the greatest common divisor (GCD) algorithm to simplify the ratio to its smallest whole numbers, making it easy to understand.
Our aspect ratio finder supports all major image formats including JPEG, PNG, GIF, WebP, and BMP. The tool works entirely in your browser, ensuring your images remain private and secure.
All processing happens directly in your browser. Your images are never uploaded to any server, ensuring complete privacy and security of your files.