## How to use the RATE function

*Article updated on February 19, 2018*

The RATE function returns the interest rate per period of an annuity.

Formula in cell E3:

### Excel Function Syntax

RATE(*nper*, *pmt*, *pv*, [*fv*], [*type*], [*guess*])

### Arguments

nper |
Required. The total number of payment periods in an annuity. |

pmt |
Required. The payment made each period and cannot change over the life of the annuity. Typically, pmt includes principal and interest but no other fees or taxes. If pmt is omitted, you must include the fv argument. |

pv |
Required. The present value — the total amount that a series of future payments is worth now. |

[fv] |
Optional. 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). If fv is omitted, you must include the pmt argument. |

[type] |
Optional. The number 0 or 1 and indicates when payments are due. |

[guess] |
Optional. Your guess for what the rate will be. |

### Functions in 'Financial'

The RATE function function is one of many functions in the 'Financial' category.