Calculate and resize images while maintaining aspect ratio. Perfect for videos, photos, and screen dimensions
Quick select popular formats
Enter your original size
Enter either new width or height to automatically calculate the other dimension while maintaining aspect ratio.
Common formats and their uses
Most common modern format. Standard for HD video, YouTube, TVs, and computer monitors.
Traditional TV format. Used in older content, some presentations, and iPad screens.
Perfect square format. Popular for Instagram posts, profile pictures, and album covers.
Mobile-first format. Instagram Stories, TikTok, Snapchat, and vertical video.
Cinematic format. Used in movies, ultrawide monitors, and immersive gaming.
Classic photo ratio. Standard for 35mm film and many digital cameras.
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Common questions about the Aspect Ratio Calculator