The interest tables which are presented on the following pages are a continuation of those which were published in Volume 5, Number 2, of The Engineering Economist. Part I included, in addition to tables, introductory material, examples of the uses of the tables, and derivations of the equations on which some of the less commonly found tables are based. The calculations for all of the tables were performed in the Syracuse University Computing Center, using an IBM 650 machine, and the work was partially supported by a grant from the National Science Foundation.