Media Production
Aspect Ratio Calculator
Aspect ratio is the proportional relationship between a video or image's width and its height. In an era where we consume content on everything from vertical smartphones to ultra-wide cinema screens, getting your proportions right is the difference between a professional look and an accidental "stretch."
How to Use the Calculator
1. Input Dimensions: Enter your original width and height in pixels (e.g., 1920 and 1080).
2. Calculate: The tool will instantly provide the simplified ratio (e.g., 16:9).
3. Scaling: Use the tool to find a new height for a specific width while maintaining the same ratio.
4. Invert: Flip the dimensions to see how a landscape video would look in portrait mode.
Modern Standards
The Golden Rule of Scaling
When you resize an image, you must multiply both the width and the height by the same factor. If you don't, the image will appear "smashed" or "pulled." Our calculator handles the Greatest Common Divisor (GCD) math for you.
Aspect Ratio FAQs
What is letterboxing? +
What is the 'Golden Ratio'? +
Why do some videos look blurry when resized? +