DESIGN / THE EVERYDAY TOOLKIT
Aspect Ratio Calculator.
Simplify dimensions to a ratio and calculate a proportional size. This is a free utility from my portfolio toolkit, with local browser processing and no account required.
Simplifies whole-number dimensions with their greatest common divisor. The target height may be fractional; round it as appropriate for the output format.
SIMPLE BY DESIGN
How to use Aspect Ratio Calculator
- Enter the original whole-number width and height.
- Set the width you want the resized object to use.
- Generate the simplified ratio and proportional height, then round pixels if your export requires integers.
Preserve proportions when an image changes size.
Enter whole-number dimensions to find their simplest ratio using the greatest common divisor. Add a target width to calculate the corresponding proportional height. This is useful when reserving layout space, preparing image exports or checking video frames. The calculation does not resize or crop a file, and a fractional target height may need rounding for a raster export. For actual processing, move the calculated dimensions into Image Resizer.
A FEW THINGS TO KNOW
A little more clarity.
Will this resize the image file?
No. It only calculates dimensions and a CSS ratio. Use Image Resizer to create a resized file.
Is my input sent to a server?
No. This utility processes your input in your browser. URLs you paste are treated as data; the tool does not fetch them. Be careful with clipboard history on shared devices.
FROM THE JOURNAL
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