Aspect Ratio Calculator

Calculate image and video dimensions with our free aspect ratio calculator and aspect ratio calculator online. Easily determine the aspect ratio calculator for image dimensions or use the aspect ratio calculator for video when working with digital media. Our aspect ratio converter, image aspect ratio calculator, and video aspect ratio calculator make it easy to calculate aspect ratio values. Use the aspect ratio finder, aspect ratio converter online, or screen aspect ratio calculator for images, videos, displays, websites, and social media content. Wondering how do I calculate aspect ratio, what is the aspect ratio of an image, or how do I calculate image dimensions from aspect ratio? Enter your dimensions and calculate the ratio instantly.

How to use the Aspect Ratio Calculator

1. Enter width and height.
2. Optionally enter a new width.

Aspect Ratio Calculator features and limits

• Reduces using the greatest common divisor
• Limitation: whole numbers needed for the simplified ratio.

How the Aspect Ratio Calculator works

Both values are divided by their GCD; a new height is width × height ÷ original width.

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Frequently asked questions

Related tools

Browse all Calculators or return to the Best Web Tools homepage.

Why use the Aspect Ratio Calculator?

Resizing images and video without distortion requires keeping the ratio. This gives the matching dimension.