What is LN function in Excel?
The LN function is one of the math functions of Excel.
It returns the natural logarithm of a number.
We can find this function in Math & trig category of insert function Tab.
How to use LN function in excel
- Click on an empty cell (like F5 )

2. Click on the fx icon (or press shift+F3)

3. In the insert function tab you will see all functions

4. Select math and trig category
5. Select LN function
6. Then select ok

7. In the function arguments Tab you will see LN function
8. Number section is the positive real number for which you want the natural logarithm
9. You will see results in the formula result section

Examples of LN function in excel
Example 1:
How to use LN function in excel
You can see examples of LN function below:

ln(1) ----->>>>answer is 0
ln(2) ----->>>>answer is 0.693
ln(3) ----->>>>answer is 1.098
ln(4) ----->>>>answer is 1.386
ln(5) ----->>>>answer is 1.609
What is the purpose of LN function?
It returns the natural logarithm of a number.
What is the Return value of LN function?
It returns a number.
How many arguments does LN function have?
This function has just 1 Argument.
The argument of LN function is number.
Number section is the positive real number for which you want the natural logarithm.
The argument of LN function is required and not optional.
LN(number) = number
Which version of excel supports LN function?
This function is available for all excel versions (2003-2019)