design

CSS clamp() Calculator

Enter a minimum and maximum font size along with the viewport width range they should apply across, and get a ready-to-use CSS clamp() value for smooth, fluid typography that scales between breakpoints without media queries. Includes a live resizable preview.

  • Nothing leaves your device
  • Runs entirely in your browser
  • Free, no account needed
Use CSS clamp() Calculator - free

Frequently asked questions

What does CSS clamp() do?

It sets a value that scales fluidly between a minimum and maximum based on viewport width, avoiding abrupt jumps at media query breakpoints.

Can I use this for spacing, not just font size?

Yes, the generated clamp() value works for any CSS property that accepts a length, such as padding, margin, or width.

How do I preview the effect?

Drag the resize handle on the preview box to simulate different viewport widths and see the font size change smoothly.

Generate a fluid clamp() value - free.

Open CSS clamp() Calculator
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