What is normal spacing between letters?
Most systems have the default letter spacing at zero and instead use the character widths and kerning information built into the font itself. Although digital type sets tighter than metal type on average, this results primarily from the availability of kerning.
How many pixels is a space character?
Show activity on this post. An "em" (1 character width) is often considered to be 16 x 16 pixels. Of course, if a viewer resizes text, that would change.