As in the picture below I want to change the font size of Chapter number "Chapter 1" and title "Introduction" separately. Is there any way I can do that. I have used the package sectsty but it changed the size of both. I need "Chapter 1" smaller than the title "Introduction".

enter image description here

  • Standard class set chapter 1 huge so it's smaller than introduction Huge. So what is your class?
    – touhami
    Jul 15, 2015 at 7:24
  • I am using report.
    – MrSingh
    Jul 15, 2015 at 7:34

2 Answers 2


report.cls class use \huge for chapter 1 and \Huge for introduction. The problem is that with \documentclass{report} normal fontsize is 10pt and \Huge=\huge if you set \documentclass[11pt]{report} you'll see that's differts. you can use sectsty package like this




% arara: pdflatex

    \huge% %change this size to your needs for the first line
    \bfseries}{\chaptertitlename\ \thechapter}{20pt}{%
    \Huge %change this size to your needs for the second line

  • Thanks. Can you tell me one more thing. How can I put the title (and chapter number) in the center of the page?
    – MrSingh
    Jul 15, 2015 at 8:03
  • @MrSingh: replace {\normalfont% with {\normalfont\filcenter% in LaRiFaRi's code.
    – Bernard
    Jul 15, 2015 at 15:16

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