- 1Choose file
- 2Adjust
- 3Download
Typographic Scale Calculator online, free
Calculate responsive fluid font hierarchies from Minor Second through Golden Ratio with rem and CSS clamp() values.
- Runs in your browser — no upload
- Free, no sign-up, no watermark
- TXT
How to use Typographic Scale Calculator · Typographic Scale Calculator — frequently asked questions
How to use Typographic Scale Calculator
- 1
Add your TXT file
Drop a file on the page, paste it, or click Select Files. Nothing is uploaded — it opens straight in your browser.
- 2
Fine-tune the settings
Set css unit in the Fine-tune panel, or keep the defaults — they suit most files.
- 3
Run Typographic Scale Calculator
Press the start button. Processing happens on your device, usually in seconds.
- 4
Download the result
Save the finished file, or continue with another tool without downloading in between.
What Typographic Scale Calculator can do
- CSS Unit: rem and px
- Private by design — files are processed in your browser and never uploaded
- Free with no sign-up, no watermark and no daily limit
Common tasks
Typographic Scale Calculator — frequently asked questions
What is a modular typographic scale?
A modular typographic scale is a proportional hierarchy of font sizes derived by multiplying a base font size (typically 16px) by a fixed mathematical ratio (such as Major Third 1.25 or Golden Ratio 1.618). It ensures visual harmony and readability across headings, subheadings, and body copy.
What musical and mathematical scales are supported?
The calculator supports classical ratios including Minor Second (1.067), Major Second (1.125), Minor Third (1.200), Major Third (1.250), Perfect Fourth (1.333), Augmented Fourth (1.414), Perfect Fifth (1.500), and the Golden Ratio (1.618).
What are fluid typography clamp() formulas?
CSS `clamp(min, preferred, max)` allows font sizes to scale smoothly and continuously with the viewport width between defined minimum (e.g. mobile 360px) and maximum (e.g. desktop 1280px) breakpoints without relying on rigid media queries.
Does the tool generate CSS variables?
Yes. The calculator outputs custom properties (`--font-size-xs`, `--font-size-base`, `--font-size-xl`, etc.) that you can drop straight into your `:root` stylesheet.
Does it support rem units?
Yes. You can toggle between `rem` (recommended for accessibility and user browser preferences) and `px` units.
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