\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
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%\usepackage[utf8x]{inputenc}    % For unicode character support
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\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{cdavis192}
\pdfinfo{
  /Title (general-chemistry-conversion-table.pdf)
  /Creator (Cheatography)
  /Author (cdavis192)
  /Subject (General Chemistry Conversion Table Cheat Sheet)
}

% Lengths and widths
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% This two commands together give roughly
% the right line height in the tables
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
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\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{General Chemistry Conversion Table Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{cdavis192} via \textcolor{DarkBackground}{\uline{cheatography.com/73571/cs/40047/}}}
\end{tabulary}
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\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}cdavis192 \\
  \uline{cheatography.com/cdavis192} \\
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\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 27th August, 2023.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
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  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
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% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

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% Row 0
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kilometer (km) = & 0.6214 miles \tn 
% Row Count 1 (+ 1)
% Row 1
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meter (m) = & 39.37 in \tn 
% Row Count 2 (+ 1)
% Row 2
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centimeter (cm) & 0.3937 in \tn 
% Row Count 3 (+ 1)
% Row 3
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% Row 4
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% Row 5
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\begin{tabularx}{8.4cm}{x{4.56 cm} x{3.44 cm} }
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% Row 0
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kilometer (km) = & 0.6214 miles \tn 
% Row Count 1 (+ 1)
% Row 1
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meter (m) = & 39.37 in \tn 
% Row Count 2 (+ 1)
% Row 2
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centimeter (cm) & 0.3937 in \tn 
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% Row 3
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% Row 4
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% Row 5
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% Row 6
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liter (L) = & 1.057 qt \tn 
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% That's all folks
\end{multicols*}

\end{document}