How to Add & Subtract Weeks to Date in Google Sheets


You can use the following basic formulas to add and subtract weeks from a date in Google Sheets:

Formula 1: Add Weeks to Date

=A1+7*(3) 

This particular formula adds 3 weeks to the date in cell A1.

Formula 2: Subtract Weeks from Date

=A1-7*(1) 

This particular formula subtracts 1 week from the date in cell A1.

The following examples show how to use each formula in practice with the following dataset in Google Sheets:

Example 1: Add Weeks to Date in Google Sheets

We can type the following formula into cell C2 to add 3 weeks to the date in cell A2:

=A2+7*(3) 

We can then drag and fill this formula down to each remaining cell in column C:

Google Sheets add weeks to date

Column C now displays the date in column A with exactly 3 weeks added to it.

Feel free to change the 3 in the formula to any value you’d like to add a different number of weeks to the original date.

Example 2: Subtract Weeks from Date in Google Sheets

We can type the following formula into cell C2 to subtract 1 week from the date in cell A2:

=A2-7*(1) 

We can then drag and fill this formula down to each remaining cell in column C:

Column C now displays the date in column A with 1 week subtracted from it.

Feel free to change the 1 in the formula to any value you’d like to subtract a different number of weeks from the original date.

Additional Resources

The following tutorials explain how to perform other common tasks in Google Sheets:

How to Sum by Year in Google Sheets
How to Sum by Month in Google Sheets
How to Sort by Date in Google Sheets

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