This document provides conversion factors for converting between different units of measurement for pressure, area, temperature, length, volume, and flow rate. It lists the multiplication factors needed to convert between atmospheres, bars, pounds per square inch, megapascals, kilopascals and other common pressure units. Similar conversion factors are provided for converting between square centimeters, square feet, square inches, square meters and other common area units as well as various length, volume, temperature, and flow rate units.