Golden Ratio Typography Calculator

A calculator that applies the golden ratio to font size, line height, and line width so you can set text with harmonious proportions on any page.

Tonble
Share X Reddit Bluesky Email
Screenshot of grtcalculator.com

Stumble onto more like this

One click takes you to a page you didn't know you were looking for. Rate it and the next one lands closer to your taste.

Add to Browser — it's free

Works in Chrome, Edge and Brave. No account needed.