Fixed-width and variable-width fonts

Fixed-width and variable-width fonts In some fonts, every character is the same width; in others, the characters are of different widths. Not surprisingly, these fonts are termed fixed width and variable width respectively. Start up you word processor. Type half a dozen lower-case "l"s and then on the next line type half a dozen lower-case "w"s. In most fonts the "w"s will be much wider. (Such fonts are variable width.) Now select the two lines of characters and set the font to Courier or Courier New. Notice that both lines are now the same length. Courier is a fixed-width font. It should be no surprise that variable-width fonts look more natural and are thus easier to read. Fixed-width fonts such as Courier have quite limited application:

Computer programmers use fixed-width fonts in order to neatly align their code. The other main use of fixed-width fonts is to produce tables that need to be neatly tabulated into fixed-width columns.