# NPER

### Definition of NPER:

This formula calculates the number of payment periods for an investment based on constant-amount periodic payments and a constant interest rate.

### Sample Usage

`NPER(2,500,40000)`

`NPER(A2,B2,C2,D2,1)`

### Syntax

`NPER(rate, payment_amount, present_value, [future_value, end_or_beginning])`

`rate`

- The interest rate.

`payment_amount`

- The amount of each payment made.

`present_value`

- The current value of the annuity.

`future_value`

-**[**OPTIONAL**]**- The future value remaining after the final payment has been made.

`end_or_beginning`

-**[**OPTIONAL -`0`

by default**]**- Whether payments are due at the end (`0`

) or beginning (`1`

) of each period.

### Notes

- Ensure that consistent units are used for
`rate`

and`payment_amount`

. For example, a car loan for 36 months may be paid monthly, in which case the annual percentage rate should be divided by 12 and the`payment_amount`

is the amount of each monthly payment. On the other hand, a different type of loan of the same length and principal might be paid quarterly, in which case the annual percentage rate should be divided by 4 and the amount paid each period would be adjusted accordingly..

### See Also

`PV`

: Calculates the present value of an annuity investment based on constant-amount periodic payments and a constant interest rate.

`PPMT`

: Calculates the payment on the principal of an investment based on constant-amount periodic payments and a constant interest rate.

`PMT`

: Calculates the periodic payment for an annuity investment based on constant-amount periodic payments and a constant interest rate.

`IPMT`

: Calculates the payment on interest for an investment based on constant-amount periodic payments and a constant interest rate.

`FVSCHEDULE`

: Calculates the future value of some principal based on a specified series of potentially varying interest rates.

FV: Calculates the future value of an annuity investment based on constant-amount periodic payments and a constant interest rate.

**Step 1. **To use the NPER Formula, **start with the Excellentable you would like to edit.**

**Step 2. Then type the NPER** **formula into the cell you have chosen to display the outcome:**

**Step 3. Fill in the 5 values- In this example I have chosen 5 values that are the same. **

### By adding the values you would like to calculate, Excellentable generates the outcome: