In Excel: select the formula cell and drag the fill handle down or across; use $ signs such as $A$1 when part of the reference must stay fixed.
On this page7
Enter the formula in the first row or column.
Double-click or drag the fill handle to copy it through adjacent rows.
Press F4 while editing a reference to add $ signs where needed.
Use Paste Special ▸ Formulas when you want formulas without source formatting.
What this does
Copying a formula repeats the logic while Excel adjusts relative cell references. A formula in C2 such as =A2*B2 becomes =A3*B3 when filled down to C3. Absolute references with dollar signs stay fixed, mixed references lock only the row or column, and Paste Special ▸ Formulas copies the formula without copying formatting. The same idea underpins a lot of everyday Excel work, so the few minutes spent getting it right here pay back across every sheet you build afterwards. Treat it as a pattern, not a one-off, and it stops being something you look up and starts being something you reach for. The difference between a quick fix and a sheet you can trust is the extra minute you spend validating “apply same formula to entire column in excel”. Start on a copy or a tiny sample, keep the affected columns visible, and compare the result with the tool above before you touch the real workbook. When this is a ribbon command, the selection matters more than the button: confirm the range, apply the command, then spot-check the output before saving. The point is a layout choice that keeps the sheet readable and sortable, but the practical win is that someone else can open the file and understand what happened without asking you.
A worked example
C2 contains =A2*B2 for quantity times price. Drag the fill handle from C2 to C20 and Excel writes =A3*B3, =A4*B4 and so on. If every row must multiply by a tax rate in F1, write =A2*B2*$F$1 before filling down so the F1 reference does not move. Fast, correct formula copying is core spreadsheet work. It turns one tested row into a reliable model and prevents subtle reference drift across hundreds of rows. When the result is not what you expected, undo straight away rather than repairing it by hand — undo restores the sheet exactly, while manual fixes tend to leave small inconsistencies behind that surface later.
In Google Sheets
This is a command rather than a formula, so there is no syntax to carry over. Google Sheets arranges its commands in menus across the top instead of a ribbon, names some of them differently and does not have every Excel command — look for the equivalent in the Sheets menus or its help before assuming the steps match. The aim was to get you unstuck fast and leave you a little more capable than a copy-paste would. The answer is at the top and the detail above shows why it holds — so the next time a colleague asks, you can answer without reaching for search. Treat “apply same formula to entire column in excel” as a routine rather than a one-off. Once you know which setting or command controls it, the same few steps handle every workbook where it comes up in Excel, and you can explain them to a colleague in a sentence.
Common mistakes
- Forgetting absolute references, so lookup tables, rates or assumptions shift while copying.
- Copying formatting along with formulas and accidentally changing the report style.
- Filling into rows with gaps, where double-clicking the fill handle may stop early.
- Pasting formulas over existing manual overrides without checking dependencies.
Frequently asked questions
How do I copy a formula without changing references?
Use absolute references like $A$1, or copy the formula text from the formula bar when you need an exact duplicate.
How do I copy only formulas?
Copy the cells, then use Paste Special ▸ Formulas.
What does F4 do in a formula?
It cycles a selected reference through A1, $A$1, A$1 and $A1.