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Fluid Typography Scale Calculator - Online clamp() Generator

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Fluid Typography Scale Calculator

Create perfect responsive typography with CSS clamp() functions. Ideal for designers and developers who value seamless scaling across devices.

Configuration
Custom
Use body as your base size; order from smallest to largest.
Live Preview
Generated CSS
// Your clamp() CSS will appear here...

Frequently Asked Questions

Fluid typography allows text to scale smoothly between a defined minimum and maximum size based on the viewport width. This ensures optimal readability on every screen, from mobile to wide desktops, without needing multiple media queries.

clamp(MIN, VAL, MAX) resolves to MAX if VAL exceeds it, MIN if VAL goes below, and VAL otherwise. For fluid typography, we use a formula like clamp(1rem, 0.8rem + 1vw, 2rem), where the middle value is a linear interpolation based on viewport width.

Both work, but rem is recommended for accessibility. It respects the user’s browser font size setting. This calculator can output either; simply toggle the “Output in rem” switch and set your base font size (usually 16px).

The ratio determines how much headings step up from the body text. Popular choices: 1.250 (Major Third) for clean, readable scales; 1.333 (Perfect Fourth) for more dramatic hierarchy; 1.618 (Golden Ratio) for classic elegance. Experiment in the preview to see what feels best for your design.

A common range is 320px (small mobile) to 1280px (laptop). You can adjust it to match your design’s breakpoints. The calculator ensures font sizes stop scaling beyond these limits, preventing text from becoming too small or oversized.

Absolutely! Any property accepting length values can be made fluid. Simply set your min and max values (e.g., for margin or line-height) and generate a clamp() expression. The same logic applies.
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