Image Aspect Ratio Calculator
Calculates and preserves an image's width-to-height ratio.
Lilu Baba's Image Aspect Ratio Calculator simplifies your image's width-to-height ratio and computes the matching height when resizing to a new width, keeping proportions intact.
How to use this calculator
- Enter the image's original width and height.
- Enter a new width to see the matching height that preserves the same aspect ratio.
Simplified Aspect Ratio
—
Matching Height at New Width
—
FAQ
Image Aspect Ratio Calculator — frequently asked questions
16:9 is the standard widescreen ratio used for most modern videos and displays; 4:3 was the older standard, and 1:1 is square (common for social media).
Always resize using the matching height (or width) this calculator provides, rather than picking dimensions that don't match the original ratio.