The tabularx package provides the tabularx environment, which is similar to tabular but does not require you to manually calculate widths for paragraph columns.
Syntax[]
tabularx takes the same arguments as tabular* but has a new column specifier X (in uppercase). The column(s) specified with this specifier will be stretched to make the table as wide as specified.
\begin{tabularx}{width}[position]{column definition}
Lorum & ipsum & dolor \\
sit & amet & consectetur \\
adipiscing & elit & sed
\end{tabularx}
Example[]
| Markup | \usepackage{tabularx}
% ...
\begin{tabularx}{\textwidth}{ |X|X|X|X| }
\hline
label 1 & label 2 & label 3 & label 4 \\
\hline
item 1 & item 2 & item 3 & item 4 \\
\hline
\end{tabularx}
|
| Renders as |  |