Golden Ratio Typography (GRT) Calculator

The Golden Ratio Typography Calculator is based on a design system to maintain the ideal proportions for typography in any design. Enter a font name, size, and content width to calculate the suggested ideal proportions for line-height, content width, characters per line, and the scale of headings from largest to smallest. The viewer also shows an example using the base font, size, and column width you specified. You can play all day with fonts and sizes.