This document was assembled more than forty years ago by Dr. E. J. Roschke at the Jet Propulsion Laboratory, California Institute of Technology. It is provided here with Dr. Roschke's permission.

Various calculators and operating systems now contain the capability for conversion between various systems of units. Nevertheless, the collection of definitions and tables included in Dr. Roschke's publication remains extremely useful.

Roschke's Document (PDF document)