Developer
CSS Clamp Calculator
Generate a responsive CSS clamp value from min and max sizes.
About this css clamp calculator
Generate CSS clamp values for responsive font sizes, spacing, and layout tokens.
Mavis Tools is built for quick utility work: paste the input, get the result, and move on. The page is static-first for speed, and the interactive work happens in your browser. That makes it useful for drafts, calculations, debugging snippets, and repeat everyday tasks.
This tool is intentionally focused. It does one job clearly instead of asking for an account or hiding the result behind a long workflow. Bookmark it if you need a fast CSS clamp calculator that works on desktop and mobile.
FAQ
What units are generated?
The output uses px for min/max and vw for the fluid middle value.
Can I change viewport widths?
Yes. Enter minimum and maximum viewport widths.
Is data uploaded?
Yes. The tool runs in your browser, and the input is not uploaded to a server.