Developer Utilities · Free tool
CSS Clamp Generator
Generate responsive CSS clamp() values for perfectly fluid typography by entering your minimum and maximum screen widths. Free, instant result.
font-size: clamp(1rem, 0.7143rem + 1.429vw, 2rem);
The quick brown fox
viewport: 320px → font-size: 16px
The quick brown fox
viewport: 880px → font-size: 24px
The quick brown fox
viewport: 1440px → font-size: 32px
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What it does
Generate fluid CSS clamp() values for typography or spacing that scale smoothly between a minimum and maximum viewport width. Skips the hand math — enter min/max sizes and breakpoints, get a working rule that works across modern browsers.
For media queries pair with aspect ratio calculator. For visual polish, box shadow generator and border radius generator.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/css-clamp-generator" width="100%" height="720" frameborder="0" loading="lazy" title="CSS Clamp Generator" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>How to use it
- Enter min size and max size (font-size or spacing).
- Enter min and max viewport widths in px.
- Pick unit (rem or px).
- Copy the clamp() rule.
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Learn more
Guides about this topic
- Developers & Technical · GuideHow to use CSS clamp()clamp() syntax, the preferred-value math, fluid typography without media queries, container query units, accessibility, browser support.
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