How Do I Use Lookup in Excel

What this does

VLOOKUP finds a value in the first column of a table and returns a value from a column to its right on the same row — the classic way to pull a price from a product code or a name from an ID. The fourth argument is the one that bites: FALSE (or 0) demands an exact match, which is almost always what you want; TRUE assumes the first column is sorted and does an approximate match. 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. Treat “use lookup in excel” as a small repeatable workflow rather than a one-off click you hope to remember next time. Use a small test block before the live file, so any surprise in the affected cells shows up while it is still harmless. 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. That turns a workflow that saves repeating the same clicks every week into a method you can reuse, explain, and defend when the workbook leaves your screen.

A worked example

With product codes in column A and prices in column B, =VLOOKUP("SKU-204", A2:B100, 2, FALSE) returns the price next to SKU-204. The 2 means “second column of the range”. If the code is not found you get #N/A — wrap it as =IFERROR(VLOOKUP(...), "not found") to show a friendly message instead. Lookups are how separate tables talk to each other — joining orders to customers, codes to descriptions, IDs to prices. Mastering VLOOKUP (and its successor XLOOKUP) turns a pile of sheets into a connected model. One habit worth forming early: name the cells that hold your inputs, so the formula reads in plain language instead of a string of cell addresses. A reviewer — or you in three months — can then follow the logic without decoding what B7 and D2 were supposed to mean, which is most of what makes a sheet maintainable.

In Google Sheets

Google Sheets handles this almost identically to Excel. The formula syntax above is the same, and the menu lives under a slightly different label rather than a ribbon tab. Use the platform toggle at the top of the page to switch every keyboard shortcut between Windows and Mac, and expect at most cosmetic differences in naming. 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 “use lookup in excel” as a small building block rather than a chore. Once the inputs sit in their own cells and the formula reads from them, the same setup answers a dozen related questions with a tweak, and Excel keeps every dependent figure current as the data changes. The tool above is there so you can rehearse and verify before committing anything to a real workbook; the steps and worked example are there so the logic sticks. Get it right once and it stops costing you time — it starts saving it, every time the question comes back around.

Common mistakes

• Omitting FALSE, so VLOOKUP returns a wrong approximate match on unsorted data.
• Counting the column number from the sheet rather than from the start of the table range.
• Looking up a value that is not in the leftmost column — VLOOKUP only looks right.
• Breaking the formula by inserting a column inside the table; use XLOOKUP or INDEX/MATCH for resilience.

Frequently asked questions