To insert a column in Google Sheets, right-click a column header and choose Insert 1 column left or Insert 1 column right.
With a complete column selected, press Ctrl + Alt + = on Windows or Command + Option + = on Mac to insert on the left.
Insert a column on the left or right
- Click the letter of the column beside the new column’s position.
- Right-click the selected column header.
- Choose Insert 1 column left or Insert 1 column right.

Our test started with Item, Qty, Price, and Total in columns A:D. We selected column C and inserted one column on its left.
The new column C was blank. Price moved to D, Total moved to E, and the total formula in E2 updated to =B2*D2.

Insert multiple columns at once
Select as many adjacent column headers as you want to add. Right-click the selection, then choose the command to insert that number of columns on the left or right.
We selected columns C:D and chose Insert 2 columns left. Sheets created two blank columns at C:D and moved Price and Total to E:F.
Use the insert-column shortcut
Windows and ChromeOS
Ctrl + Alt + =
Select the complete column header, then press the shortcut. Our Windows Chrome test inserted one blank column to the left of the selected column.
Mac
Command + Option + =
Google documents this Mac shortcut when columns are selected. We did not test it on a Mac.
Google also documents menu sequences for inserting columns on a chosen side in its Sheets shortcut list.
Select the complete column before using the shortcut
Clicking the column letter is the clearest selection method. A blue highlight should cover the complete column, including empty cells below the data.
In our test, pressing Ctrl + Space once from C1 selected only the used cells C1:C4. Clicking the column header avoided that ambiguity.
What happens to formulas?
Sheets can update references when a structural insertion moves their source cells. In the tested table, =B2*C2 moved with Total and became =B2*D2.
Check important formulas after inserting columns, especially formulas that use text-based references or external data. The tested automatic update does not prove every formula pattern will adjust.
Google’s column and cell instructions also cover moving, resizing, and deleting columns.
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