# Font size of Chapter number and Chapter Title [duplicate]

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".

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

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

\documentclass{report}

\usepackage{sectsty}

\chapternumberfont{\tiny}
\chaptertitlefont{\Huge}

\begin{document}
\chapter{introduction}
\end{document}

% arara: pdflatex

\documentclass{report}
\usepackage{titlesec}
\titleformat{\chapter}[display]
{\normalfont%
\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
}

\begin{document}
\chapter{Introduction}
\section{Motivation}
\end{document}

• 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 '15 at 8:03
• @MrSingh: replace {\normalfont% with {\normalfont\filcenter% in LaRiFaRi's code. – Bernard Jul 15 '15 at 15:16