Media
Aspect Ratio
Calculate, scale and convert image and video aspect ratios.
How it works
A comprehensive aspect ratio calculator designed for designers, developers, and content creators working with images and videos. Calculate aspect ratios, scale dimensions proportionally, explore common presets, and plan crop areas.
The Calculate Ratio tab lets you input width and height to get the simplified ratio (like 16:9), decimal ratio, and percentage. It automatically detects common standards and shows labels like "16:9 (widescreen)" or "4:3 (standard)".
The Scale Dimensions tab helps you resize while maintaining aspect ratio. Enter original dimensions and either a new width or height, and it calculates the missing dimension to keep proportions intact.
The Common Presets tab provides a quick reference grid of standard ratios with common pixel dimensions. Click any preset to populate the calculator. Includes 16:9 for video, 4:3 for presentations, 1:1 for social media, 9:16 for mobile stories, and 21:9 for ultrawide.
The Crop Calculator tab helps you plan centered crops. Input your original image size and target ratio, and it calculates the crop dimensions with a visual preview box. Perfect for preparing images for specific platforms or aspect requirements.