Does this tool upload my CSS values?
No. The calculation runs locally in your browser.
Calculators
CSS Clamp Calculator
Enter size and viewport bounds to generate a reusable clamp() expression without sending anything to a server.
✓ Tool inputs are processed in your browser✓ No account
Generate responsive clamp() values locally.
When to use this tool
Use it when you want fluid type, spacing or radius values that scale smoothly between two viewport breakpoints.
- Create a responsive font-size rule.
- Build fluid spacing or layout values.
- Check the exact clamp() expression before pasting it into CSS.
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FAQ
Questions
Questions
What does clamp() do?
It keeps a value between a minimum and maximum while allowing a preferred fluid value in the middle.
Can I use pixels or rems in the result?
This calculator outputs a pixel-based clamp() expression that you can adapt to your CSS system.