# MS Excel: LN Function (WS)

This Excel tutorial explains how to use the Excel LN function with syntax and examples.

## Description

The Microsoft Excel LN function returns the natural logarithm of a number.

## Syntax

The syntax for the LN function in Microsoft Excel is:

`LN( number )`

### Parameters or Arguments

number
A numeric value that must be greater than 0.

## Applies To

The LN function can be used in the following versions of Microsoft Excel:

• Excel 2013, Excel 2011 for Mac, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000

## Type of Excel Function

The LN function can be used in Microsoft Excel as the following type of function:

• Worksheet function (WS)

## Example (as Worksheet Function)

Let's look at some Excel LN function examples and explore how to use the LN function as a worksheet function in Microsoft Excel:

Based on the Excel spreadsheet above, the following LN examples would return:

```=LN(A1)
Result: 2.995732274

=LN(A2)
Result: 3.218875825

=LN(A3)
Result: 4.605170186

=LN(200)
Result: 5.298317367```
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