CSS Clamp() Calculator

Create responsive clamp() values for font sizes, spacing, or layout without media queries. Enter a breakpoint and a max value in px or rem.

This tool calculates a fluid vw value for use in CSS, e.g.: padding: clamp(1rem, 2.5vw, 3rem);

Settings are stored in localStorage and with presets for reuse. Fast, simple, and ideal for modern responsive design.

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CSS clamp() calculator from Happiness – built for development, not ads.
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