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Sinking Formula Calculator

Instructions: Use the following calculator as a series of examples. Perform the operation yourself and then check your answer by pressing the "=" key. If your answers do not match, check your work first. If you still do not understand refer to the definitions or incremental calculator page to review.
The following is the formula for calculating accumulated amount of money as a result of compound interest.
R = iS/((1+i)n-1)

Enter your own values into the boxes or press new example for computer generated numbers.
To use as a quiz, try to evaluate the expresion yourself and then check your answer. The calculator solves the following problem:
The periodic payment R required to accumulate a sum of S dollars over n periods with interest charged at the rate of i per period.
S =   r =   m =   t =
S

Definitions
Incremental Calculator
Intro
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