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Excel NPER Function

We use the NPER function in combination with the PV, PMT and RATE functions to calculate the number of installment paid within a period. This article will walk through the process.

Figure 1 – Final result of the NPER function using the PV, PMT, and RATE function.

General Formula

=NPER(rate, pmt, pv)



Setting up the Data

We will set up our table as shown in figure 2, with hypothetical players including the Loan amount, interest rate, Monthly payment, compounding periods. We intend to get the number of periods for loan or investment.

  • We will place the parameters in the range: B5:B8.
  • The figures will be contained in Column C
  • The result will be named “Period (terms in months)” and displayed in Cell B10 and C10

Figure 2 – Setting up the Data

Using the NPER function

  • We will click on Cell C10
  • We will insert the formula below into Cell C10

Figure 3 – Using the Excel NPER function

  • We will press the enter key.

Figure 4 – Result of using the NPER function

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Another blog reader asked this question today on Excelchat:
Here are some problems that our users have asked and received explanations on

I am trying to calculate the time needed to accumulate $500K in a 401K account using a fixed interest rate and a fixed investment per month. I can't get the NPER formula to work. I need some help. Please.
Solved by Z. J. in 28 mins
I need a pv formula which I'm sure has an IF function: Rate=B5/12 nper= subtract cell b10 from b6 and multiply by 12 pmt= negative B7 My answers should be 255,022.95 284,573.82 185,040.73 43,562.09
Solved by F. F. in 26 mins
In Cell D5, create a formula using the PMT function to determine the monthly payments for the anticipated Campground mortgage using the defined names Rate, Term_Years, and Loan_Amount as the Rate, nper, and pv arguments in the formula
Solved by X. W. in 26 mins

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