LOGINV function
This article describes the formula syntax and usage of the LOGINVfunction in Microsoft Excel.
Description
Returns the inverse of the lognormal cumulative distribution function of x, where ln(x) is normally distributed with parameters mean and standard_dev. If p = LOGNORMDIST(x,...) then LOGINV(p,...) = x.
Use the lognormal distribution to analyze logarithmically transformed data.
Syntax
LOGINV(probability, mean, standard_dev)
The LOGINV function syntax has the following arguments:

Probability Required. A probability associated with the lognormal distribution.

Mean Required. The mean of ln(x).

Standard_dev Required. The standard deviation of ln(x).
Remarks

If any argument is nonnumeric, LOGINV returns the #VALUE! error value.

If probability <= 0 or probability >= 1, LOGINV returns the #NUM! error value.

If standard_dev <= 0, LOGINV returns the #NUM! error value.

The inverse of the lognormal distribution function is:
Example
The example may be easier to understand if you copy it to a blank worksheet.
How do I copy an example?

Select the example in this article.
Important Do not select the row or column headers.
Selecting an example from Help

Press CTRL+C.

In Excel, create a blank workbook or worksheet.

In the worksheet, select cell A1, and press CTRL+V.
Important For the example to work properly, you must paste it into cell A1 of the worksheet.

To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.
After you copy the example to a blank worksheet, you can adapt it to suit your needs.

