Typography Calculator
Generate a harmonious modular type scale using musical interval ratios. Export as CSS variables or Tailwind config.
Scale — Perfect Fourth (×1.333)
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The quick fox
The quick fox
The quick fox
The quick fox
The quick fox
The quick fox
The quick fox
The quick fox
The quick fox
Frequently Asked Questions
Is this typography scale calculator free to use?
Yes, the tool is completely free with no login, watermarks, or usage limits.
Does this tool run offline?
Yes. The scale is computed entirely in your browser using JavaScript — no data is sent to a server.
What scale ratios can I choose from?
You can pick from 12 musical interval ratios, including Minor Second, Perfect Fourth, Golden Ratio, and Octave, to generate a modular type scale from your base font size.
How do I export the generated scale?
You can copy the full scale as CSS custom properties (:root variables) or as a Tailwind fontSize config object, or copy an individual step's font-size declaration.