How to add subfigure in Latex: : Step-by-Step Tutorial with Examples

In research articles, we need to add subfigures often. To create subfigure in latex, you can use both \begin{minipage}...\end{minipage} and \begin{subfigure}...\end{subfigure} block to insert subfigures or sub-images. Subfigurs are generally inserted horizontally in one or multiple rows. Here, some example codes with output screenshots are provided in the following.

Add subfigures horizontally

The following code puts two subfigures in a figure portion-

\usepackage{subcaption}
\begin{figure}[ht]
\begin{subfigure}{.5\textwidth}
  \centering
  % include first image
  \includegraphics[width=.8\linewidth]{image_file_name}  
  \caption{Put your sub-caption here}
  \label{fig:sub-first}
\end{subfigure}
\begin{subfigure}{.5\textwidth}
  \centering
  % include second image
  \includegraphics[width=.8\linewidth]{image_file_name}  
  \caption{Put your sub-caption here}
  \label{fig:sub-second}
\end{subfigure}
\caption{Put your caption here}
\label{fig:fig}
\end{figure}

So, applying the code the output should look like this -

Here is another code to do the same. Only difference is, this time we are using \begin{minipage}...\end{minipage} instead of \begin{subfigure}...\end{subfigure} block.

\begin{figure}[ht]
  \subfloat[Percentage storage utilization]{
	\begin{minipage}[c][1\width]{
	   0.3\textwidth}
	   \centering
	   \includegraphics[width=1\textwidth]{image_file_name}
	\end{minipage}}
 \hfill 	
  \subfloat[standard deviation]{
	\begin{minipage}[c][1\width]{
	   0.3\textwidth}
	   \centering
	   \includegraphics[width=1.1\textwidth]{image_file_name}
	\end{minipage}}
 \hfill	
  \subfloat[execution time]{
	\begin{minipage}[c][1\width]{
	   0.3\textwidth}
	   \centering
	   \includegraphics[width=1.2\textwidth]{image_file_name}
	\end{minipage}}
\caption{}
\end{figure}

So, applying the code the output should look like this-

Add multiple subfigures in multiple rows

Multiple subfigures can be put in multiple rows by adding a \newline after one row is complete. For example, if you have four figures and you want to put them in 2x2 style, put \newline after two subfigures which will be placed in the first rwo. The command will create a new row for rest of the subfigures.

\usepackage{caption}
\usepackage{subcaption}
\begin{document}
\begin{figure}
\begin{subfigure}{.5\textwidth}
  \centering
  % include first image
  \includegraphics[width=.8\linewidth]{log_demo1.png}  
  \caption{Put your sub-caption here}
  \label{fig:sub-first}
\end{subfigure}
\begin{subfigure}{.5\textwidth}
  \centering
  % include second image
  \includegraphics[width=.8\linewidth]{log_demo2.png}  
  \caption{Put your sub-caption here}
  \label{fig:sub-second}
\end{subfigure}

\newline

\begin{subfigure}{.5\textwidth}
  \centering
  % include third image
  \includegraphics[width=.8\linewidth]{log_demo1.png}  
  \caption{Put your sub-caption here}
  \label{fig:sub-third}
\end{subfigure}
\begin{subfigure}{.5\textwidth}
  \centering
  % include fourth image
  \includegraphics[width=.8\linewidth]{log_demo2.png}  
  \caption{Put your sub-caption here}
  \label{fig:sub-fourth}
\end{subfigure}
\caption{Put your caption here}
\label{fig:fig}
\end{figure}

So, applying the code the output should look like this-

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Related Posts

You can find a comprehensive list of Latex resources in the following post:

Latex Resources in a Nutshell

If you are a new Latex user, check out this post: 20 Most Common Mistakes Made by New Latex Users

You can find all Latex oriented posts of mine in: https://shantoroy.com/categories/#latex

Some of those are included here.

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• Preparing Tables for Publication and Documentation in Latex
• Creating Bar Charts using Latex PGFPlots
• Line Plotting using Latex PGFPlots
• How to write algorithm in Latex
• How to Write Matrix with Row/Column Labels in Latex
• How to Collaboratively Write a Paper using Overleaf Latex Platform
• Itemize, Enumerate, and To-do-list in Latex

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