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`PV = "PMT" *( 1/ "r" - 1/( "r" *(1+ "r" )^t))`

Enter a value for all fields

The **Present Value of an Ordinary Annuity** calculator computes the present value (PV) of a fixed rate annuity based on:

- (PMT) regular annuity payment,
- (r) fixed interest rate of return per period, and
- (t) number of periods defining the duration.

**Present Value (PV):** The calculator computes the Present Value in U.S. dollars (USD). However, this can be automatically converted into other currency units (e.g. Russian Ruble) via the pull-down menu.

The Present Value of a an Ordinary Annuity formula calculates the current lump-sum value of of a future annuity paid in fixed payments (PMT) based on a fixed interest rate (r) over a number of payments (t). This formula could be used to assess whether to receive a lump sum lottery award or to receive an annuity over time.

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