# Lump Sum Number of Periods Calculator

## What does it do?

This lump sum number of periods calculator works out the amount of time it takes to grow a lump sum from its present value to a future value allowing for a given discount rate.

More precisely, the lump sum number of periods calculator, calculates the number of periods (n), for a lump sum to be compounded from its present value (PV) to its future value (FV), using a discount rate i.

## Formula

The calculator uses the lump sum number of periods formula as shown below:

```n = LN (FV / PV) / LN (1 + i)
```

Full details of the formula can be seen at our lump sum number of periods formula page.

## Instructions

The Excel lump sum number of periods calculator, available for download below, is used to compute the number of periods by entering details relating to the present value, future value, and the discount rate. The calculator is used as follows:

### Step 1

Enter the future value (FV). The future value is the value of the lump sum required at the end of period n.

### Step 2

Enter the discount rate (i). The discount rate is the rate used to compound the lump sum forward, from the beginning of period 1 (today), to end of period n. The rate should be for a period, so for example, if the period is a year, then the rate should be the yearly rate.

### Step 3

Enter the present value (PV). The present value is the value of the lump sum at the beginning of period 1 (today).

### Step 4

The lump sum number of periods calculator works out the number of periods (n). The answer is the number of periods it takes to compound the lump sum from its present value (PV), to its future value (FV), at the discount rate i.

## Lump Sum Number of Periods calculator Download

The lump sum number of periods calculator spreadsheet is available for download in Excel format by following the link below.

The lump sum number of periods calculator is one type of tvm calculator used in time value of money calculations, discover another at the links below.

Notes and major health warnings
Users use this lump sum number of periods calculator at their own risk. We make no warranty or representation as to its accuracy and we are covered by the terms of our legal disclaimer, which you are deemed to have read. This is an example of a time value of money calculator that you might use when considering how to calculate the number of periods. It is purely illustrative of a tvm calculator. This is not intended to reflect general standards or targets for any particular business, company or sector. If you do spot a mistake in this lump sum number of periods calculator, please let us know and we will try to fix it.
Lump Sum Number of Periods Calculator November 6th, 2016

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