To add a formula in Google Sheets, click the cell where you want the answer, then choose one of the hundreds of functions.

Where <position of first cell in the column> is the cell number of the first cell with the date of birth mentioned in the column of date of birth. Eg. If you are creating the list of ages of the ...

To prevent cells from being edited, you can lock them in Google Sheets. This is especially convenient if you’re working on a spreadsheet with others. You may have formulas or functions that you want ...