In Excel: use =CONCATENATE(text1, text2, ...) — it joins several text items into one string; in modern Excel the same job is done by CONCAT or simply the & operator.
Syntax
Arguments
| Argument | Description | |
|---|---|---|
text1 | required | The first text item to join — a cell reference or a string in quotes. |
text2, ... | optional | Optional further items to append, one after another; up to 255 in total. |
Related functions
3 rows joined
What this does
CONCATENATE glues together text from cells and typed strings into a single value. You list each piece as an argument and it appends them in order, with no spaces added — you insert any separators yourself as " " arguments. CONCATENATE is now legacy: Excel 2016 and later replace it with CONCAT (which also accepts whole ranges), and the & operator (=A1&" "&B1) does exactly the same thing more compactly. All three produce identical results. Keep the inputs visible and clearly labelled and the whole thing stays auditable — anyone who opens the file later, including you, can see at a glance exactly what feeds the result and change one assumption without hunting through the formula. The difference between a quick fix and a sheet you can trust is the extra minute you spend validating “concat excel columns”. 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 a formula is involved, keep the inputs labelled beside it, reference cells instead of typing values, and apply number formatting only after the result checks out. The point is a text operation that turns messy entries into clean, usable data, but the practical win is that someone else can open the file and understand what happened without asking you.
A worked example
A first name sits in A2 ("Maria") and a last name in B2 ("Klein"). To join them with a space between: =CONCATENATE(A2, " ", B2) returns "Maria Klein". The middle " " argument supplies the space; without it you would get "MariaKlein". The same result comes from =A2&" "&B2 or, in newer Excel, =CONCAT(A2, " ", B2). CONCATENATE remains common in older workbooks, but for new formulas the & operator or CONCAT is shorter and TEXTJOIN handles ranges, so reach for those when you can. A practical tip before you scale it up: build it once on a small block of test data, confirm the number against the tool on this page, and only then point it at your real sheet. That one habit catches almost every mistake while it is still cheap to fix, long before a wrong figure reaches a report or a colleague.
In Google Sheets
If you are in Google Sheets rather than Excel, the good news is that the formula shown here is identical and the workflow barely changes — menus sit across the top instead of in a ribbon, and a few function names differ slightly, but anything you build here moves across with little or no rework. 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, the tool proves it, and the detail above shows why it holds — so the next time a colleague asks, you can answer without reaching for search. Here is the takeaway for “concat excel columns”: copy the answer if you are busy, but if you have a spare few minutes, rebuild the example in Excel yourself with the tool above open beside it. That single pass — type it, run it, watch the result move when you change an input — is what turns a formula you found into a technique you trust. Keep your inputs labelled and referenced, never hard-coded, and the same sheet stays correct and auditable as it grows. Done that way, you will not need to look this up again, and you will be the person others ask.
Common mistakes
- Forgetting the separator argument, so "Maria" and "Klein" run together as "MariaKlein" with no space.
- Expecting
CONCATENATEto accept a range likeA2:A6— it joins single items only; useCONCATorTEXTJOINto join a range. - Typing text without quotes, so words like a literal space or label trigger a
#NAME?error instead of appearing as text.
Frequently asked questions
What is the difference between CONCATENATE, CONCAT and &?
They all join text. CONCATENATE is the legacy function; CONCAT (Excel 2016+) replaces it and can also take whole ranges; the & operator, as in =A1&" "&B1, does the same thing with less typing. Use & or CONCAT in new work.
How do I add a space between joined values?
Insert " " (a space in quotes) as its own argument between the cells: =CONCATENATE(A2, " ", B2). For a comma and space use ", " instead.
Can CONCATENATE join a whole range at once?
No — it takes items one by one. To join a range such as A2:A6, use TEXTJOIN, which accepts a range and a delimiter, or CONCAT, which accepts ranges in newer Excel.