PDURATION function

The PDURATION function returns the number of periods for an investment to reach a specific value at a given rate. Mathematically, PDURATION = (log(futureValue) - log (currentValue))/(log(1 + rate)).

Parts of a PDURATION function

PDURATION(rate, present_value, future_value)

Part Description
rate Required. The rate at which the investment grows each period.
present_valuepresent_value Required. The investment's current value.
future_valuefuture_value Required. The investment's desired future value.

Notes

All values must be positive and greater than 0.

Examples

PDURATION FORMULA
1.817059493 =PDURATION(0.25, 10, 15)
3.600511394 =PDURATION(0.75, 2, 15)

Related functions

  • RRI: The RRI function returns the interest rate needed for an investment to reach a specific value within a given number of periods.
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