enter image description here" />If you use c , then you can't define / set a horizontal size limit for the column (such as 2.5cm in OP's example). If you use c , lines won't be automatically wrapped inside the table cells.
Commented Dec 24, 2016 at 18:28Does this answer your question? How to create fixed width table columns with text raggedright/centered/raggedleft? [remark: the linked question is more general, but the answer there is better that it gets hyphenation and \newline correct]
Commented Apr 11, 2023 at 14:41You have to load the package array , define a new column type with horizontal centering
\newcolumntype[1]<>p> and use this one ( P ) instead of p
\documentclass[conference] \usepackage \newcolumntype[1]<>p> \begin \begin \centering \begin<|P|P|P|> \hline Reconstruction strategy & aa & bb( \%) \\ \hline Classic & 3342 voxels & 68 \% \\ \hline VC & 4296 voxels & 87 \% \\ \hline V m=7 & 4745 voxels & 96 \% \\ \hline \end \newline\newline \caption\label \end \end
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If you also want vertical centering, use m instead of p :
\documentclass[conference] \usepackage \newcolumntype[1]<>p> \newcolumntype[1]<>m> \begin \begin \centering \begin<|M|M|M|> \hline Reconstruction strategy & aa & bb( \%) \\ \hline Classic & 3342 voxels & 68 \% \\ \hline VC & 4296 voxels & 87 \% \\ \hline V m=7 & 4745 voxels & 96 \% \\ \hline \end \newline\newline \caption\label \end \end
