HOW IT IS CALCULATED
Reduce dimensions to an aspect ratio
1920 × 1080 → 16:9
Instant resultClear formulaRuns locally
01Values
02width:GCD : height:GCD
03Result
1920 × 1080 → 16:9
Aspect ratio ignores absolute size
1920×1080 and 1280×720 share the same 16:9 shape.
02
In short
What logic does the calculator use?
width:GCD : height:GCD
Example?
1920 × 1080 → 16:9