What is the optimal size of the reading area for text?

Question

User interface

Tell me what size of the reading area (on the site) is the most optimal in terms of convenience for the reader. And what font size to use?

Answer 1

I think you should recalculate all this in the ratio "number of characters per line."
Well, some information . Even if the research is somewhat old.

Answer 2

And to the heap - habrahabr.ru/post/135746/

Answer 3

Read various articles and studies about 80 characters and the like, and then open wikipedia and livejournal ^)

Answer 4

Use the font Verdana, among many other fonts, it differs in that it has no serifs, and this is already less stress on the smooth when reading from the screen, the second one takes up the largest area from the allocated space for the character.
Try to insert three options on the page and choose the most readable, I think the choice will be the same.
Is it easy to read?
Is it easy to read?
Is it easy to read?

Answer 5

If it's simple: 8-10 words per line. If for some reason you suddenly need more, then the line spacing should be greater (so that with long lines the eye does not “slip” to other lines, but exactly follows the “current” line).