The Uniform Series Sinking Fund (USSF) factor calculator computes the USSF based on the interest rate per period and the number of periods.
INSTRUCTIONS: Enter the following:
- (i) Interest Rate
- (n) Number of Periods
Uniform Series Sinking Fund factor (USSF): The calculator returns the factor as a real number.
The Math / Science
The formula for the Uniform Series Sinking Fund (USSF) factor is:
`USSF = i / ( (1+i)^n -1)`
where:
- USSF is the Uniform Series Sinking Fund factor
- i is the interest rate per period
- n is the number of periods (e.g. cash flow periods)
The USSF is a Discrete Compounding Discount Factor. Often, a sinking fund is created by an organization through saving money over a period of time to fund a future capital expense or repay a long-term debt.
NOTES
This equation calculate the discount factor used to calculate annualized cash flow from a future worth.
This is the constant periodic amount, at a constant interest rate that must be deposited to accumulate a future value.
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.