#### Calculate AGE

```i need help to calculate age by using dob.what kind of field do i need for
the dob and what kind of format?

thanks irit
``` 0  Utf
10/21/2007 11:10:01 PM access  16762 articles. 2 followers. 5 Replies 1324 Views Similar Articles

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```DOB should be a date field.

Age (in years) is calculated as

DateDiff("yyyy", [DOB], Date) - _
IIf(Format([DOB], "mmdd") < Format(Date, "mmdd"), 1, 0)

DateDiff calculates how many "year crossings" occur between the two dates:
it'll say that there's 1 year between 31 Dec of one year and 1 Jan of the
next year, despite the fact that it's really only 1 day. That's why you
subtract 1 from the calculation if the birthday hasn't taken place yet this
year.

If you want finer granularity than years, (say 28 year, 7 months and 2
days), see http://www.accessmvp.com/DJSteele/Diff2Dates.html

--
Doug Steele, Microsoft Access MVP
http://I.Am/DougSteele

"Imarko" <Imarko@discussions.microsoft.com> wrote in message
news:9D9FEC7C-86B0-4317-B86E-7AF586A7F8C3@microsoft.com...
>i need help to calculate age by using dob.what kind of field do i need for
> the dob and what kind of format?
>
> thanks irit

``` 0  Douglas
10/21/2007 11:30:16 PM
```check out

http://www.mvps.org/access/datetime/date0001.htm
--
Hope this helps,

Daniel P

"Imarko" wrote:

> i need help to calculate age by using dob.what kind of field do i need for
> the dob and what kind of format?
>
> thanks irit
``` 0  Utf
10/21/2007 11:59:00 PM
```I used itlike this but it is not working,I change the format in the ageyearly
to a date formal(mm/dd/yyyy)
AgeYearly = DateDiff("yyyy", [DOB], Date) - _
IIf(Format([DOB], "mmdd") < Format(Date, "mmdd"), 1, 0)
still it is not working
thanks Irit

"Douglas J. Steele" wrote:

> DOB should be a date field.
>
> Age (in years) is calculated as
>
> DateDiff("yyyy", [DOB], Date) - _
>   IIf(Format([DOB], "mmdd") < Format(Date, "mmdd"), 1, 0)
>
> DateDiff calculates how many "year crossings" occur between the two dates:
> it'll say that there's 1 year between 31 Dec of one year and 1 Jan of the
> next year, despite the fact that it's really only 1 day. That's why you
> subtract 1 from the calculation if the birthday hasn't taken place yet this
> year.
>
> If you want finer granularity than years, (say 28 year, 7 months and 2
> days), see http://www.accessmvp.com/DJSteele/Diff2Dates.html
>
> --
> Doug Steele, Microsoft Access MVP
> http://I.Am/DougSteele
>
>
> "Imarko" <Imarko@discussions.microsoft.com> wrote in message
> news:9D9FEC7C-86B0-4317-B86E-7AF586A7F8C3@microsoft.com...
> >i need help to calculate age by using dob.what kind of field do i need for
> > the dob and what kind of format?
> >
> > thanks irit
>
>
>
``` 0  Utf
10/24/2007 2:29:05 PM
```Thank you very much it's solve my problem
irit

"Daniel" wrote:

> check out
>
> http://www.mvps.org/access/datetime/date0001.htm
> --
> Hope this helps,
>
> Daniel P
>
>
>
>
>
> "Imarko" wrote:
>
> > i need help to calculate age by using dob.what kind of field do i need for
> > the dob and what kind of format?
> >
> > thanks irit
``` 0  Utf
10/24/2007 2:44:05 PM
```What didn't work about it?

I noticed in another response that you said
http://www.mvps.org/access/datetime/date0001.htm worked for you. What I gave
you is essentially the same as the first response on that page.

--
Doug Steele, Microsoft Access MVP
http://I.Am/DougSteele

"Imarko" <Imarko@discussions.microsoft.com> wrote in message
news:1B58CB6A-C89A-41EF-8190-81D0B894EBE9@microsoft.com...
>I used itlike this but it is not working,I change the format in the
>ageyearly
> to a date formal(mm/dd/yyyy)
> AgeYearly = DateDiff("yyyy", [DOB], Date) - _
>  IIf(Format([DOB], "mmdd") < Format(Date, "mmdd"), 1, 0)
> still it is not working
> thanks Irit
>
>
> "Douglas J. Steele" wrote:
>
>> DOB should be a date field.
>>
>> Age (in years) is calculated as
>>
>> DateDiff("yyyy", [DOB], Date) - _
>>   IIf(Format([DOB], "mmdd") < Format(Date, "mmdd"), 1, 0)
>>
>> DateDiff calculates how many "year crossings" occur between the two
>> dates:
>> it'll say that there's 1 year between 31 Dec of one year and 1 Jan of the
>> next year, despite the fact that it's really only 1 day. That's why you
>> subtract 1 from the calculation if the birthday hasn't taken place yet
>> this
>> year.
>>
>> If you want finer granularity than years, (say 28 year, 7 months and 2
>> days), see http://www.accessmvp.com/DJSteele/Diff2Dates.html
>>
>> --
>> Doug Steele, Microsoft Access MVP
>> http://I.Am/DougSteele
>>
>>
>> "Imarko" <Imarko@discussions.microsoft.com> wrote in message
>> news:9D9FEC7C-86B0-4317-B86E-7AF586A7F8C3@microsoft.com...
>> >i need help to calculate age by using dob.what kind of field do i need
>> >for
>> > the dob and what kind of format?
>> >
>> > thanks irit
>>
>>
>>

``` 0  Douglas
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