Finding age from year

I have a SS that has a column for YOB (year of birth) and would like
to generate a column with which to chart age distributions. What's the
best functions to find AGE from YOB and current date?

-dude

Since all you have is the year of birth, I think I'd use:

=YEAR(TODAY())-A1-1

But it might not be accurate depending on the date and month of their birth.

If you ever get the actual date of birth, you could use =datedif().

Chip Pearson has lots of instructions at:
http://www.cpearson.com/excel/datedif.htm

[email protected] wrote:
>
> I have a SS that has a column for YOB (year of birth) and would like
> to generate a column with which to chart age distributions. What's the
> best functions to find AGE from YOB and current date?
>
> -dude

--

Dave Peterson

On Thu, 02 Mar 2006 20:05:06 -0600, Dave Peterson
<[email protected]> brought the following to our attention:

>Since all you have is the year of birth, I think I'd use:
>
>=YEAR(TODAY())-A1-1
>
>But it might not be accurate depending on the date and month of their birth.
>
>If you ever get the actual date of birth, you could use =datedif().

Thanks.. that's working thus far.. but why the -1? What rationale
are you using here? Care to provide an example or two? How about
-0.5 for a half-year error?

-dude


>Chip Pearson has lots of instructions at:
>http://www.cpearson.com/excel/datedif.htm
>
>[email protected] wrote:
>>
>> I have a SS that has a column for YOB (year of birth) and would like
>> to generate a column with which to chart age distributions. What's the
>> best functions to find AGE from YOB and current date?
>>
>> -dude

Today is March 4, 2006

If I was born in 2000, how old am I.

Maybe 5 or maybe 6 depending on when in 2000.

I subtracted one just because it worked for me (well, not the born in 2000
part).







[email protected] wrote:
>
> On Thu, 02 Mar 2006 20:05:06 -0600, Dave Peterson
> <[email protected]> brought the following to our attention:
>
> >Since all you have is the year of birth, I think I'd use:
> >
> >=YEAR(TODAY())-A1-1
> >
> >But it might not be accurate depending on the date and month of their birth.
> >
> >If you ever get the actual date of birth, you could use =datedif().
>
> Thanks.. that's working thus far.. but why the -1? What rationale
> are you using here? Care to provide an example or two? How about
> -0.5 for a half-year error?
>
> -dude
>
> >Chip Pearson has lots of instructions at:
> >http://www.cpearson.com/excel/datedif.htm
> >
> >[email protected] wrote:
> >>
> >> I have a SS that has a column for YOB (year of birth) and would like
> >> to generate a column with which to chart age distributions. What's the
> >> best functions to find AGE from YOB and current date?
> >>
> >> -dude

--

Dave Peterson

On Sat, 04 Mar 2006 06:15:04 -0600, Dave Peterson
<[email protected]> brought the following to our attention:

>Today is March 4, 2006
>
>If I was born in 2000, how old am I.
>Maybe 5 or maybe 6 depending on when in 2000.
>
>I subtracted one just because it worked for me (well, not the born in 2000
>part).

Thanks for the example. I was thinking of doing something like making
the assumption that in YOB, the AVE month is June or July.. and using
resolution of TODAY to the month or day. The errors would average out
and the AGE would be used for distribution histograms.. which have
resolutions of 5yr and 10yr.

It's a good exercise to work for others [to see] as well. Hey, the
guys in the age-group are tough customers, they are pilots and
captains (some retired..) :]

-dude

>
>[email protected] wrote:
>>
>> On Thu, 02 Mar 2006 20:05:06 -0600, Dave Peterson
>> <[email protected]> brought the following to our attention:
>>
>> >Since all you have is the year of birth, I think I'd use:
>> >
>> >=YEAR(TODAY())-A1-1
>> >
>> >But it might not be accurate depending on the date and month of their birth.
>> >
>> >If you ever get the actual date of birth, you could use =datedif().
>>
>> Thanks.. that's working thus far.. but why the -1? What rationale
>> are you using here? Care to provide an example or two? How about
>> -0.5 for a half-year error?
>>
>> -dude
>>
>> >Chip Pearson has lots of instructions at:
>> >http://www.cpearson.com/excel/datedif.htm
>> >
>> >[email protected] wrote:
>> >>
>> >> I have a SS that has a column for YOB (year of birth) and would like
>> >> to generate a column with which to chart age distributions. What's the
>> >> best functions to find AGE from YOB and current date?
>> >>
>> >> -dude