I wanted to find out the font size and readability of the font size to decide a comfortable distance which people can read. Example a project text.
What I learnt is we use pt or points in our PPT. This is the line height.
1 inch is 72 points. Or 72 points make an inch.
Now take a look at the table and choose what font size in inches or points is required when read at a distance measured in feet.
Example : if I am at a distance of 240 feet, I would need a 24 inch font for easier readability.
A 1 inch font size or 72 pt will serve the purpose of reading it from a 10 feet distance.
I found a multiplication factor or 10 when u convert inches to feet as described in the article below.
http://www.meadowoutdoor.com/billboard-design/good-vs-bad/font-size
