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Design and CSS Tools

Typography Scale Generator

Generate a typography scale from a base font size and modular ratio.

ToolRuns in the browser
Typography Scale Generator working example

Generate a typography scale from a base font size and modular ratio.

Runs in your browser
Sample result
Example Typography Scale Generator result
Proportion result
- Missing value x: 12
- Cross-products: 2×12 = 3×8 = 24
- Review the input unit and rounding rule
Next step: compare the two cross-products or test a second known proportion
The interactive tool loads in this area when JavaScript is enabled.

How to use Typography Scale Generator

Common uses include Generate CSS snippets, Build design system values, Preview layout styles.

  • Open Typography Scale Generator and enter the three known values in a:b = c:x.
  • Keep a, b, and c in compatible units and make sure the divisor is not zero. Focus first on Generate CSS snippets.
  • Calculate x, then compare a×x with b×c to verify the proportion. Use the next pass to Preview layout styles.
  • Record x together with the input values, unit, and rounding rule before you Build design system values.

Useful for

  • Generate CSS snippets
  • Build design system values
  • Preview layout styles

Common issues

The result is undefined or infinite.

Make sure the value used as the divisor is not zero and that every known field contains a number.

The proportion is numerically correct but the real quantity is wrong.

Convert all inputs to compatible units before calculating and keep the unit with the result.

How to interpret the result

Use x only after confirming the proportion order, compatible units, cross-products, and rounding precision.

Related workflow

Next path: Typography Scale Generator -> UI Shadow Token Preset Generator -> UI State Color Palette Generator. Keep the original input nearby so you can compare each result before using it elsewhere.

Privacy and review notes

This tool is designed to process inputs in the browser where the workflow allows it. For important work, compare the output with your original source and the rules of the service where you will use it. Use non-sensitive examples and review the output before sharing or submitting it.