<p> Because you don't know how many bits make a byte </p> <ul> <p><li>Covers length, area, volume, weight, energy, temperature, time, geometry, speed, and more</li></p> <p><li>Contains up-to-date information, including computer file and storage measurements</li></p> <p><li>Provides more than 120 conversion tables and charts</li></p> </ul> <p> Published in collaboration with the Smithsonian Institution, America's foremost authority in history, science, and art. </p>