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How to add/subtract weeks to date in Excel?

In this tutorial, you can get the tricks to add n weeks to date or subtract n weeks from data in Excel.

Add/subtract weeks to date with formulas

Add/subtract weeks to date with Kutools for Excel good idea3

There are some formulas can help you add or subtract weeks to date in Excel.

Select a blank cell and type this formula =A1+7*2 into it, press Enter key and drag autofill handle over the cells which you need to apply this formula. See screenshots:

doc add week to date 1
doc add week to date 2


1. If you want to subtract weeks from date, you need this formula =A1-7*2.

2. In above formulas, 2 indicates to add or subtract two weeks, you can change it as you need.

If you have Kutools for Excel, congratulation, you never need to remember the formulas any more. Go to the Formulas group, you can find the formula to add weeks to date or subtract weeks from date easily.

Kutools for Excel, with more than 300 handy functions, makes your jobs more easier. 

After installing Kutools for Excel, please do as below:(Free Download Kutools for Excel Now!)

1. Select a blank cell, here is C1, and click Kutools > Formula Helper > Add weeks to date. See screenshot:

doc add week to date 14

2. In the Formula Helper dialog, select the date cell into Date Time box, and then type the number of weeks you want to add into Number box. See screenshot:

doc add week to date 12

Tip: If you need to subtract some weeks from a date, you can type a negative number into Number textbox, for example subtract 4 weeks from the date in our case, please type -4 into the Number box.

3. Click Ok. Then drag auto fill handle over the cells you need. Now the dates have been added/subtracted 4 weeks. See screenshots:

doc add week to date 5doc add week to date 6

You can add multiple days, years, or months to a given date with Formula Helper too.

doc add week to date 15

Click here to know more about this utility.


You can use the Kutools for Excel’s AutoText to save the formulas, so that you can find and reuse them easily next time.

After free installing Kutools for Excel, please do as below:

1. Type the formula into a blank cell, and select the formula, see screenshot:

doc add week to date 7

2. Click Kutools > Navigation to disable Navigation pane, then click AutoText > Formula. See screenshot:

doc add week to date 8

3. Then click the New Auto Text button to display the dialog, and type the formula name you want into the Name box. See screenshot:

doc add week to date 9

4. Click Add. Now the formula has been save into the pane.

doc add week to date 10

When you need to apply this formula, you can select the cell and choose this formula from the pane.

With Navigation pane, you can list all open workbooks, all worksheets, find and replace words across sheets and so on.

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