Video Aspect Ratio Converter
Calculate proportional target dimensions while maintaining original aspect ratio
Input
Enter a target width or height to auto-calculate the other dimension.
Result Width
1280 px
Result Height
720 px
FAQ
How is proportional scaling calculated?
Scale ratio = target dimension ÷ original dimension. Then multiply the other dimension by the same ratio. This preserves the original aspect ratio.
Why maintain aspect ratio?
Maintaining aspect ratio prevents stretching or distortion. A 1920×1080 video scaled to 1280px wide should be 720px tall to stay proportional.
What are common video resolutions?
Common resolutions at 16:9: 426×240 (240p), 640×360 (360p), 854×480 (480p), 1280×720 (720p), 1920×1080 (1080p), 3840×2160 (4K).