HOW IT IS CALCULATED
Resize while preserving aspect ratio
1920×1080 → width 1280 gives height 720
Instant resultClear formulaRuns locally
01Values
02new height = new width × old height ÷ old width
03Result
1920×1080 → width 1280 gives height 720
Changing one dimension determines the other
Preserving the ratio avoids stretching the image.
02
In short
What logic does the calculator use?
new height = new width × old height ÷ old width
Example?
1920×1080 → width 1280 gives height 720