CSS Clamp Generator

Generate fluid clamp values for responsive typography and spacing.

Clamp expression generation
Viewport range controls
Copy-ready CSS output

Clamp inputs

Set the min and max sizes plus the viewport range you want to scale across.

Clamp output

Paste this into font-size, gap, width, or other responsive CSS properties.

Common use cases

  • Creating fluid type scales
  • Making spacing responsive without many media queries
  • Testing size ranges for component design systems

FAQ

Is this only for font sizes?

No. Clamp values are useful for spacing, widths, gaps, and other responsive properties too.

Do I need to calculate the formula by hand?

No. The tool handles the slope and intercept so you can focus on the size range you want.

More guides