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While there is no perfect line height, a good rule of thumb is to set it at approximately 150% of the font size. While there is no perfect line height, a good rule of thumb is to set it at approximately 150% of the font size.
- How big should line height be?
- What is the ideal line length in typography?
- What is the ideal line spacing?
- What is a good rule for font size?
How big should line height be?
Line height, or line spacing, is commonly measured as a percentage of font size. Conventional wisdom is that line spacing of 130%-150% is ideal for readability, but even up to 200% is acceptable. The perfect line height depends on the design and size of the font itself. There is no magic number that works for all text.
What is the ideal line length in typography?
Ruder concluded that the optimal line length for body text is 50–60 characters per line, including spaces (“Typographie”, E. Ruder). Other sources suggest that up to 75 characters is acceptable.
What is the ideal line spacing?
For most text, the optimal line spacing is between 120% and 145% of the point size. Most word processors, as well as CSS, let you define line spacing as a multiple. Or you can do the math—multiply your point size by the percentage. (The text in this paragraph has line spacing of 135%.
What is a good rule for font size?
Body text - Font sizes should be around 16px to 18px for legibility (or 1.6rem to 1.8rem using our sizing rules mentioned above). If you can afford to go a bit larger, then even 21px can be pleasant to read. Headings - The headings should be around 1.96 times larger than your body text to create a sufficient contrast.
