Calculating 26 weeks from start date

nudepinksnake

New Member
Joined
Aug 6, 2010
Messages
1
Hi guys,

How can I create a formula that will calculate an end date for a period of 26 weeks when I already have a start date? The 26th week will always end on a friday. however, week one can be defined as any working day.

Thanks in advance!
 

Excel Facts

Workdays for a market open Mon, Wed, Friday?
Yes! Use "0101011" for the weekend argument in NETWORKDAYS.INTL or WORKDAY.INTL. The 7 digits start on Monday. 1 means it is a weekend.

JoeMo

MrExcel MVP
Joined
May 26, 2009
Messages
17,933
Office Version
  1. 365
  2. 2010
Platform
  1. Windows
Hi guys,

How can I create a formula that will calculate an end date for a period of 26 weeks when I already have a start date? The 26th week will always end on a friday. however, week one can be defined as any working day.

Thanks in advance!
If start date is in cell A1, this should give you the Friday 26 weeks later.
Code:
=CHOOSE(WEEKDAY(26*7+A1,1),26*7+A1-2,26*7+A1-3,26*7+A1-4,26*7+A1-5,26*7+A1-6,26*7+A1,26*7+A1-1)
 

Weaver

Well-known Member
Joined
Sep 10, 2008
Messages
5,196
I think this should work, for a date in A2

=A2+7*26+5-WEEKDAY(A2,2)
 
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