The Bond Valuation process is important for both individual and institutional investors. It helps investors determine the theoretical fair value of a bond, which is necessary to calculate the rate of return required for a particular investment. The face value or par value of a bond, as well as the present value of its future interest payments (cash flow), are taken into account when performing a valuation.Bond valuation can be used to measure the profitability of an investment in bonds. In order to achieve this goal, one must understand how to calculate both the par value and cash flow associated with any given bond issue. This information is readily available from most financial institutions that deal in bonds or on various websites that aggregate this data for public consumption.