Design Studio · Bench
Aspect Ratio Calculator
Resize while keeping proportions
About this bench
About Aspect Ratio Calculator
Resize dimensions while keeping the same aspect ratio — enter one side and get the other.
Input
Adjust the visual controls or paste the design value requested by the bench.
Result
A live preview plus a value or CSS snippet you can copy into your own work.
Limits
Rendering can vary between browser engines. Check the result in every browser and accessibility mode your product supports.
How to use Aspect Ratio Calculator
- 01Enter the original width and height.
- 02Enter one new dimension.
- 03Read the matching dimension that keeps the ratio.
- 04Use the values for your image or video.
Frequently asked questions
Is it free?
Yes — it is free with no sign-up, no watermark and no account-based quota. Your browser, device memory and the bench's stated file limits still determine how much it can process at once.
Is my data private?
Nothing is uploaded. This tool runs entirely in your browser, so your data is processed on your own device and never sent to a server.
What does locking an aspect ratio do?
It preserves the original width-to-height proportion, so entering one new dimension calculates the matching other dimension without stretching.