Single Payment Present Worth (SPPW) Factor

The Single Payment Present Worth (SPPW) calculator computes the Single Payment Present Worth factor based on the interest rate and number of cash flow periods.

INSTRUCTIONS: Enter the following:

• i% - interest rate entered as a percentage; i.e., enter 4.7 for a 4.7% interest rate
• n - number of cash flow periods

Single Payment Present Worth (SPPW):  The calculator returns the SPPW factor as a real number.

The Math / Science

 The formula for Single Payment Present Worth is:

     SSPW =(1+i)^-n

where:

• SPPW is the Single Payment Present Worth factor
• i is the interest rate
• n is the number of cash flow periods.

This equation solves for the single payment present worth factor.  The single-payment present-worth factor, SPPWF,  is the reciprocal of the single-payment compound amount factor.  

This equation uses the discount rate, i, and the number of payments to calculate the discount factor which will return present value of a future worth.  symbol:  (P/F,i%,n)

Present and Future Worth Calculators

• (SPCA) Single Payment Compound Amount Factor
• (USSF) Uniform Series Sinking Fund Factor 
• (SPPW) Single Payment Present Worth Factor
• (UGFW) Uniform Gradient Future Worth Factor 
• (UGPW) Uniform Gradient Present Worth Factor 
• (UGUS) Uniform Gradient Uniform Series Factor 
• (USCA) Uniform Series Compound Amount Factor 
• (USPW) Uniform Series Present Worth Factor 

REFERENCE

• Lindeburg, Michael R (1992). Engineer In Training Reference Manual. Professional Publication, Inc. 8th Edition.