Digital Hub Lab

CSS clamp() Calculator

Generate a CSS clamp() expression for fluid spacing, typography, widths and other responsive values.

Web & DesignLive

Create a CSS clamp expression that scales a property smoothly between minimum and maximum values across a viewport range.

Preparing the interactive tool…

How to use this tool

  • Enter the CSS property you want to control.
  • Set the root font size and value limits.
  • Choose the viewport range.
  • Copy the declaration and test it at small, medium and large widths.

Understanding the result

Clamp combines a minimum, a fluid preferred value and a maximum. The calculated expression is mathematical; suitability still depends on the component and layout.

Practical guidance

Use sensible limits and verify the result in real content. Fluid spacing should support the layout rather than cause text or controls to become cramped.