Aspect Ratio Calculator
Simplify a width and height into a clean aspect ratio like 16:9.
Result
Aspect ratio
16:9
Decimal ratio
1.778
How it works
Divide width and height by their greatest common divisor
The aspect ratio describes shape independently of size. 1920×1080 simplifies to 16:9, the standard for most screens and video.
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Frequently asked questions
What is a 16:9 ratio?
A widescreen shape: 16 units wide for every 9 tall — the standard for TVs, monitors and video.
Does resizing change the ratio?
No — scaling keeps the same ratio as long as width and height grow by the same factor.
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