If I have a person's birthday, how can I calculate their current age based on
today's date?


Thanks!

You can use the DATEDIF function. E.g.,

=DATEDIF(birthdate,TODAY(),"y")

See www.cpearson.com/excel/datedif.htm for more information about
DATEDIF.


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com



"devinm21" wrote in message
...
If I have a person's birthday, how can I calculate their
current age based on
today's date?


Thanks!

"devinm21" wrote:

If I have a person's birthday, how can I calculate their current age based on
today's date?


Thanks!

"ertug" wrote in message
...


"devinm21" wrote:

If I have a person's birthday, how can I calculate their current age
based on
today's date?


Thanks!


In whole years:

=YEAR(NOW())-YEAR(A1)-IF(MONTH(NOW())MONTH(A1),0,IF(MONTH(NOW())MONTH( A1),1,IF(DAY(NOW())<DAY(A1),1,0)))

There's been a big discussion on this already.

http://excelforum.com/showthread.php...light=bluenose

Mangesh



"Vic Sowers" wrote in message
...

"ertug" wrote in message
...


"devinm21" wrote:

If I have a person's birthday, how can I calculate their current age
based on
today's date?


Thanks!


In whole years:


=YEAR(NOW())-YEAR(A1)-IF(MONTH(NOW())MONTH(A1),0,IF(MONTH(NOW())MONTH( A1),
1,IF(DAY(NOW())<DAY(A1),1,0)))

My version of Excel does not have the "DATEIF" function. I was bale to cut
and paste the formula in, and it works fine. However it dispays the results
as Xyears, Xmonths, Xdays. I used to have it displayed as a four digit
(##.##) number, which made finding the average age eay. Any suggestions on
how to get that format back?

"Mangesh Yadav" wrote:

There's been a big discussion on this already.

http://excelforum.com/showthread.php...light=bluenose

Mangesh



"Vic Sowers" wrote in message
...

"ertug" wrote in message
...


"devinm21" wrote:

If I have a person's birthday, how can I calculate their current age
based on
today's date?


Thanks!


In whole years:


=YEAR(NOW())-YEAR(A1)-IF(MONTH(NOW())MONTH(A1),0,IF(MONTH(NOW())MONTH( A1),
1,IF(DAY(NOW())<DAY(A1),1,0)))

Then you simply need to subtract the earlier date from the recent, and
format as number.
=A1-B1

Mangesh



"junepbug" wrote in message
...
My version of Excel does not have the "DATEIF" function. I was bale to cut
and paste the formula in, and it works fine. However it dispays the
results
as Xyears, Xmonths, Xdays. I used to have it displayed as a four digit
(##.##) number, which made finding the average age eay. Any suggestions on
how to get that format back?

"Mangesh Yadav" wrote:

There's been a big discussion on this already.

http://excelforum.com/showthread.php...light=bluenose

Mangesh



"Vic Sowers" wrote in message
...

"ertug" wrote in message
...


"devinm21" wrote:

If I have a person's birthday, how can I calculate their current
age
based on
today's date?


Thanks!


In whole years:



=YEAR(NOW())-YEAR(A1)-IF(MONTH(NOW())MONTH(A1),0,IF(MONTH(NOW())MONTH( A1),
1,IF(DAY(NOW())<DAY(A1),1,0)))

On Thu, 9 Jun 2005 04:54:09 -0500, "Vic Sowers"
wrote:


"ertug" wrote in message
...


"devinm21" wrote:

If I have a person's birthday, how can I calculate their current age
based on
today's date?


Thanks!


In whole years:


Somewhat shorter formula:

=DATEDIF(A1,TODAY(),"y")


--ron