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NPER
 

Returns the number of periods for an investment based on periodic, constant payments and a constant interest rate.

Syntax

NPER(rate, pmt, pv, fv, type)

For a more complete description of the arguments in NPER and for more information about annuity functions, see PV.

Rate   is the interest rate per period.

Pmt   is the payment made each period; it cannot change over the life of the annuity. Typically, pmt contains principal and interest but no other fees or taxes.

Pv   is the present value, or the lump-sum amount that a series of future payments is worth right now.

Fv   is the future value, or a cash balance you want to attain after the last payment is made. If fv is omitted, it is assumed to be 0 (the future value of a loan, for example, is 0).

Type   is the number 0 or 1 and indicates when payments are due.

Set type equal to If payments are due
0 or omitted At the end of the period
1 At the beginning of the period

Example

The example may be easier to understand if you copy it to a blank worksheet.

ShowHow to copy an example

  1. Create a blank workbook or worksheet.
  2. Select the example in the Help topic.

    Note  Do not select the row or column headers.

    Selecting an example from Help

    Selecting an example from Help

  3. Press CTRL+C.
  4. In the worksheet, select cell A1, and press CTRL+V.
  5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.
 
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Data Description
12% Annual interest rate
-100 Payment made each period
-1000 Present value
10000 Future value
1 Payment is due at the beginning of the period (see above)
Formula Description (Result)
=NPER(A2/12, A3, A4, A5, 1) Periods for the investment with the above terms (60)
=NPER(A2/12, A3, A4, A5) Periods for the investment with the above terms, except payments are made at the beginning of the period (60)
=NPER(A2/12, A3, A4) Periods for the investment with the above terms, except with a future value of 0 (-9.578)
See Also
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