# Formula query

#### james_simpson1998

##### New Member
Hi people,

What I am trying to do is this, this is an example so not the exact wording:

Cell A4 contains a week number, example 40.
Entering forumla into cell A6: If cell A1 equals "A" and cell A2 equals "B", convert cell A4 into week number date, i.e week 40 = 28/09/2020.

is there a formula that can do this please?

### Excel Facts

Why are there 1,048,576 rows in Excel?
The Excel team increased the size of the grid in 2007. There are 2^20 rows and 2^14 columns for a total of 17 billion cells.

#### Fluff

##### MrExcel MVP, Moderator
Hi & welcome to MrExcel.
=IF(AND(A1="A",A2="B"),DATE(YEAR(TODAY()),1,-2)-WEEKDAY(DATE(YEAR(TODAY()),1,3))+A4*7,"")

#### james_simpson1998

##### New Member
Hi & welcome to MrExcel.
=IF(AND(A1="A",A2="B"),DATE(YEAR(TODAY()),1,-2)-WEEKDAY(DATE(YEAR(TODAY()),1,3))+A4*7,"")
Hi,

thanks for your help. Could I add into the formula if A4 = blank, then A6 = blank?

Thank you.

#### Fluff

##### MrExcel MVP, Moderator
=IF(A4="","",IF(AND(A1="A",A2="B"),DATE(YEAR(TODAY()),1,-2)-WEEKDAY(DATE(YEAR(TODAY()),1,3))+A4*7,""))

#### james_simpson1998

##### New Member

=IF(A4="","",IF(AND(A1="A",A2="B"),DATE(YEAR(TODAY()),1,-2)-WEEKDAY(DATE(YEAR(TODAY()),1,3))+A4*7,""))
Brilliant, thank you.

#### Fluff

##### MrExcel MVP, Moderator
You're welcome & thanks for the feedback.

#### james_simpson1998

##### New Member
Now what if I wanted to take it a step further...

what if i had a separate table on another sheet which told me, for example transit times in weeks. Lets use for example 4 weeks total transit time.

And what I would like to do is to insert a week number into cell M92 for example, and total transit time for this example is 4 weeks which is what is on the table on the other sheet. So, M92 = 35 (for example), i would like P92 to pull through the date of week 35, O92 to pull through P92-4 total weeks from the other table? Does this make sense?

#### Fluff

##### MrExcel MVP, Moderator
As this is now a totally different question, you will need to start a new thread.

Excel contains over 450 functions, with more added every year. That’s a huge number, so where should you start? Right here with this bundle.

1,164,012
Messages
5,834,916
Members
430,326
Latest member
tomwax46

### We've detected that you are using an adblocker.

We have a great community of people providing Excel help here, but the hosting costs are enormous. You can help keep this site running by allowing ads on MrExcel.com.

### Which adblocker are you using?

1)Click on the icon in the browser’s toolbar.
2)Click on the icon in the browser’s toolbar.
2)Click on the "Pause on this site" option.
Go back

1)Click on the icon in the browser’s toolbar.
2)Click on the toggle to disable it for "mrexcel.com".
Go back

### Disable uBlock Origin

Follow these easy steps to disable uBlock Origin

1)Click on the icon in the browser’s toolbar.
2)Click on the "Power" button.
3)Click on the "Refresh" button.
Go back

### Disable uBlock

Follow these easy steps to disable uBlock

1)Click on the icon in the browser’s toolbar.
2)Click on the "Power" button.
3)Click on the "Refresh" button.
Go back