Excel Formula

[ridge]

Lookiong for a formula that will count the months between two specific dates...

ie: 1/31/81
11/30/12

how many months is this?...

 

[Andrzejek]

How about:
[pre]
A B C

1/31/1981 11/30/2012 [blue]=(B2-A2)/30[/blue]
[/pre]
Assuming 30 days per month

Have fun.

---- Andy

 

[SkipVought]

Ah, the devil is in the details!

Exactly what do you mean by "months between two specific dates?" There is not necessarily one answer.

How about:

1/31/2012 2/1/2012
1/31/2012 2/28/2012
1/31/2012 3/1/2012


Skip,

_{Just traded in my old subtlety...
for a NUANCE!}

 

[jpadie]

flushed with the success of being able to answer (poorly) an earlier question in this forum, here is my attempt at a formula which will count the number of whole months and append a fraction based on a 30 day month. changing the 30 to 100 would 'fake' the decimal to reflect the actual number of days

//assume the earlier date is called date1 and the later date is called date2
=((YEAR(date2)-YEAR(date1))*12)+MONTH(date2)-MONTH(date1) + ((DAY(DATE(YEAR(date1),MONTH(date1)+1,)) - DAY(date1) + DAY(date2))/30)

 

[combo]

You could use YEARFRAC(Date1,Date2,Base)*12. Depending on rules (Date1=Date2 case, result 0 or 1) you can need Date1-1 instead of Date1. Base is an integer within 0-4, depending on calendar rules. You may need an Analysis Toolpak add-in installed.

combo