▣ CALCULATORS Updated July 25, 2026

Aspect Ratio Calculator

Simplify any width and height to a clean ratio, then scale it to a new size.

Width
Height
New width (optional)
New height (optional)
Result
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How it works

The tool reduces your width and height by their greatest common divisor to get the simplest ratio, then scales the missing side proportionally when you enter a new width or height.

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Frequently asked questions

What is a 16:9 aspect ratio?

It means the width is 16 units for every 9 units of height — the standard for HD and 4K video and most monitors.

How do I resize without stretching?

Enter your original width and height, then a new width; the tool returns the matching height that keeps the same ratio.

Comments

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