\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
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\usepackage{lastpage}           % Needed for total page number
\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{{[}deleted{]}}
\pdfinfo{
  /Title (unit-conversion.pdf)
  /Creator (Cheatography)
  /Author ({[}deleted{]})
  /Subject (Unit conversion Cheat Sheet)
}

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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
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% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\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}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Unit conversion Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{{[}deleted{]}} via \textcolor{DarkBackground}{\uline{cheatography.com/67483/cs/16966/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}{[}deleted{]} \\
  \uline{cheatography.com/deleted-67483} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 6th September, 2018.\\
   Updated 6th September, 2018.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% 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}

\begin{tabularx}{8.4cm}{x{1.728 cm} x{1.368 cm} x{2.232 cm} x{1.872 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Physical quantity}}  \tn
% Row 0
\SetRowColor{LightBackground}
{\bf{Unit name}} & {\bf{Symbol}} & {\bf{SI conversion}} & {\bf{Definition}} \tn 
% Row Count 2 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.016 cm} p{1.08 cm} x{1.656 cm} x{2.448 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Length units}}  \tn
% Row 0
\SetRowColor{LightBackground}
inch & in & 2,54 cm & {[}≡ 1/36 yd{]} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
foot & ft & 30,48 cm & {[}≡ 12 in{]} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
yard & yd & 0,9144 m & {[}≡ 3 ft{]} \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
mile & mi & 1609,34 m & {[}≡ 5280 ft{]} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
nautic mile & nm; NM & 1852 m & {[}≡ 6080 ft{]} \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
league & lea & 4828,03 m & {[}≡ 3 mi{]} \tn 
% Row Count 6 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.368 cm} p{0.72 cm} x{2.304 cm} x{2.808 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Area units}}  \tn
% Row 0
\SetRowColor{LightBackground}
are & a & 100 m\textasciicircum{}2\textasciicircum{} & {[}≡ 100 m\textasciicircum{}2\textasciicircum{}{]} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
acre & ac & 4046,86 m\textasciicircum{}2\textasciicircum{} & {[}≡ 4840 sq yd{]} \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{hectare} & ha & 10000 m\textasciicircum{}2\textasciicircum{} & {[}≡ 10000 m\textasciicircum{}2\textasciicircum{}{]} \tn 
% Row Count 5 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.088 cm} p{0.864 cm} x{1.512 cm} x{2.736 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Volume units}}  \tn
% Row 0
\SetRowColor{LightBackground}
tablespoon & tbsp & 15 mL & {[}≡ 15 mL{]} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
pint & pt & 0,568 L & {[}≡ 1/8 gal{]} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
gallon & gal & 4,546 L & {[}≡ 4,546 L{]} \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.376 cm} p{0.72 cm} x{1.656 cm} x{2.448 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Speed units}}  \tn
% Row 0
\SetRowColor{LightBackground}
mile per hour & mph & 0,447 m/s & {[}≡ ​1 mi/h{]} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
knot & kn & 0,514 m/s & {[}≡ ​1 NM/h{]} \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{1.08 cm} p{0.72 cm} x{2.52 cm} x{2.88 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Dynamic viscosity units}}  \tn
% Row 0
\SetRowColor{LightBackground}
poise & P & 10\textasciicircum{}-1\textasciicircum{} Pa·s & {[}≡ 1 barye·s{]} \tn 
% Row Count 1 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.664 cm} p{0.72 cm} x{1.008 cm} x{2.808 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Mass units}}  \tn
% Row 0
\SetRowColor{LightBackground}
carat & kt & 200 mg & {[}≡ ​200 mg{]} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
ounce (avoirdupois) & oz av & 28,35 g & {[}≡ ​1/16 lb{]} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
pound (avoirdupois) & lb av & 0,45 kg & {[}≡ ​7000 grains{]} \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.016 cm} x{1.008 cm} x{1.152 cm} x{3.024 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Force units}}  \tn
% Row 0
\SetRowColor{LightBackground}
dyne & dyn & 10\textasciicircum{}-5\textasciicircum{} N & {[}≡ ​1 g·cm/s\textasciicircum{}2\textasciicircum{}{]} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{kilogram-force} & kgf; kp & 9,81 N & {[}≡ 1 kg x {\emph{g}}{]} \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.232 cm} p{0.72 cm} x{1.944 cm} x{2.304 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Pressure units}}  \tn
% Row 0
\SetRowColor{LightBackground}
torr & torr & 133,32 Pa & {[}≡ 101325/760 Pa{]} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
millimeter of mercury & mmHg & 133,32 Pa & {[}≡ ...{]} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
pound per square inch & psi & 6,894 x 10\textasciicircum{}3\textasciicircum{} Pa & {[}≡ 1 lbf/in\textasciicircum{}2\textasciicircum{}{]} \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.664 cm} p{0.72 cm} x{1.152 cm} x{2.664 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Energy units}}  \tn
% Row 0
\SetRowColor{LightBackground}
erg & erg & 10\textasciicircum{}-7\textasciicircum{} J & {[}≡ 1 g⋅cm/s\textasciicircum{}2\textasciicircum{}{]} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
British thermal unit & BTU & 1,055 kJ & {[}≡ ...{]} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
ton of TNT & tTNT & 4,184 GJ & {[}≡ 1 Gcal{]} \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.016 cm} p{0.72 cm} x{1.368 cm} x{3.096 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{8.4cm}}{\bf\textcolor{white}{Power units}}  \tn
% Row 0
\SetRowColor{LightBackground}
horsepower & hp & 735,5 W & {[}≡ 75 m·kgf/s{]} \tn 
% Row Count 1 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.508 cm} x{1.292 cm} x{3.8 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Temperature units}}  \tn
% Row 0
\SetRowColor{LightBackground}
kelvin & K & T{[}K{]} = T{[}°C{]} + 273,15 \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
degree Celsius & °C & T{[}°C{]} = T{[}K{]} - 273,15 \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
degree Rankine & °R; °Ra & T{[}°R{]} = 9/5 x T{[}K{]} \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
degree Fahrenheit & °F & T{[}°F{]} = 9/5 x T{[}°C{]} + 32 \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}