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How to add/subtract weeks to date in Excel?

Author Sun Last modified

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

Add/subtract weeks to date with formulas

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:

a screenshot of using formula to add weeks to a date
a screenshot showing all date results after adding certain weeks

Notes:

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.

Add/subtract weeks to date with Kutools for Excel

If you have Kutools for Excel, congratulation, you never need to remember the formulas any more. Go to the Formula group, you can find the Date & Time helper utility which can solve this job easily.

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

1. Select a blank cell, here is C1, and click Kutools > Formula Helper > Date & Time helper. See screenshot:

a screenshot of enabling the Date & Time helper

2. In the Date & Time helper dialog, check Add or Subtract as you need in the Type section, then choose a date cell you want to use to calculate, then type the number of weeks you need to minuse or add.
a screenshot of setting the Date & Time Helper to add certian weeks to a date

3. Click Ok. Then drag auto fill handle over the cells you need. Now the dates have been added 4 weeks. See screenshots:
a screenshot showing all calculated results

Subtract weeks, see screenshot:
a screenshot of setting the Date & Time Helper to subtract certian weeks to a date

Click here to know more about this utility.

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