The VBA LOG function is listed under the math category of VBA functions. When you use it in a VBA code, **it returns the logarithm of the number you supplied**. The logarithm is a mathematical calculation that is the inverse function of exponentiation. You can learn more about this calculation here.

## Syntax

**Log(Number)**

## Arguments

**Number**: The number for which you want to calculate the natural logarithm.

## Example

To practically understand how to use VBA LOG function, you need to go through the below example where we have written a vba code by using it:

```
Sub example_FILTER()
Range("B1").Value = Log(Range("A1"))
End Sub
```

In the above code, we have used the LOG to get the natural logarithm of the number we have in cell A1 and it has returned 2.70805020110221 in cell B1 as a result.

## Notes

- If the supplied number is less than or equals 0 then VBA will return a run-time 5 error.
- If the value specified is a value other than a number or a number that can’t be recognized as a number, VBA will return the run-time 13 error.

## Related Functions

ABS | ATN | COS | EXP | FIX | INT | RND | ROUND | SGN | SIN | SQR | TAN