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Formula (workdays) Help !

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I Need A Formula That Will Take A Date In Cell E37 And Add The Value In Cell B39 (lets Say B39 = 7) - However I Want It To Exclude Saturdays Or Sundays And Have The Answer In Cell E39. So Esentially I Need A Formula That Will Add A Certain Amount Of Days To A Date Not To Include Saturdays And Sundays Only Working Days.

Ex 06 Oct 2005 + 5 Days = 12 Oct 2006 (includes The 06 Oct 05 As The First Day)

Thank You For Your Help

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You want =NETWORKDAYS - you may need to go to Tools Add-ins, Analysis Toolpack

Analysis Toolpack adds so many additional advanced functions and merges them with all the other functions.

Info below copied and pasted from Excel Help

Returns the number of whole working days between start_date and end_date. Working days exclude weekends and any dates identified in holidays. Use NETWORKDAYS to calculate employee benefits that accrue based on the number of days worked during a specific term.

If this function is not available, and returns the #NAME? error, install and load the Analysis ToolPak add-in.


On the Tools menu, click Add-Ins.
In the Add-Ins available list, select the Analysis ToolPak box, and then click OK.
If necessary, follow the instructions in the setup program.


Important Dates should be entered by using the DATE function, or as results of other formulas or functions. For example, use DATE(2008,5,23) for the 23rd day of May, 2008. Problems can occur if dates are entered as text.

Start_date is a date that represents the start date.

End_date is a date that represents the end date.

Holidays is an optional range of one or more dates to exclude from the working calendar, such as state and federal holidays and floating holidays. The list can be either a range of cells that contains the dates or an array constant of the serial numbers that represent the dates.


Microsoft Excel stores dates as sequential serial numbers so they can be used in calculations. By default, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,448 days after January 1, 1900. Microsoft Excel for the Macintosh uses a different date system as its default.
If any argument is not a valid date, NETWORKDAYS returns the #VALUE! error value.

The example may be easier to understand if you copy it to a blank worksheet.


Create a blank workbook or worksheet.
Select the example in the Help topic. Do not select the row or column headers.

Selecting an example from Help

Press CTRL+C.
In the worksheet, select cell A1, and press CTRL+V.
To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.

1 Date Description
2 10/01/2008 Start date of project
3 3/01/2009 End date of project
4 11/26/2008 Holiday
5 11/26/2008 Holiday
6 12/4/2008 Holiday

Formula Description (Result)
=NETWORKDAYS(A2,A3) Number of workdays between the start and end date above (108)
=NETWORKDAYS(A2,A3,A4) Number of workdays between the start and end date above, excluding the first holiday (107)
=NETWORKDAYS(A2,A3,A4:A6) Number of workdays between the start and end date above, excluding every holiday above (105)

Note To convert the range of cells used for holidays in the last example into an array constant, select reference A4:A6 in the formula and then press F9.
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