This book is a compilation of conversion factors for helping with transposing from the International System of Units (or metric system) to the English system of measurement (and vice versa). Other conversions and units are also listed when relevant, or of general interest to the reader. The book also contains other useful information including helpful common formulas; various parts per million specifics; chemistry info; plus much more helpful information for anyone involved in the life and physical sciences (chemistry, biology, agriculture, horticulture, geology, physics, astronomy, and other physical sciences.