Aspect Ratio Calculator
Scale width and height while keeping the ratio.
Embed this tool on your site
Free — a link back to LoopStook is included.
What is the Aspect Ratio Calculator?
Free aspect ratio calculator. Enter your original width and height and a new width to get the matching height that preserves the aspect ratio — perfect for resizing images and video.
How to use the Aspect Ratio Calculator
- 1
Enter your numbers
Type your figures into the Aspect Ratio Calculator fields.
- 2
Read the result
The result calculates instantly in your browser as you type — there's no button to press.
- 3
Use it to decide
Apply the number to guide your budget, pricing, rate, or campaign decision.
Frequently asked questions
How do I keep an image from stretching?
Scale width and height by the same factor. Enter your original dimensions and the new width, and this tool gives the exact height that preserves the ratio, so nothing distorts.
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