How to calculate aspect ratio
- Enter original width and height or select a preset.
- Calculate the simplified ratio.
- Type one new dimension to generate the other proportionally.
Aspect Ratio Calculator
Find a simplified width-to-height ratio and calculate new proportional dimensions.
Your ratio will appear here.
Resize proportionally
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FAQ
What is 16:9 used for?
It is a common widescreen ratio for video, displays and presentation slides.
Can I use decimals?
Use whole pixel dimensions for the clearest simplified ratio.