How Do I Use SUMIF in Excel

What this does

SUMIF adds numbers conditionally: it checks each cell in range against one criterion and, for every row that passes, adds the matching cell from sum_range. The criterion can be exact text, a number, a comparison like ">100", or a wildcard pattern. If you leave off sum_range, SUMIF adds the cells in range itself — handy when the column you test is also the column you total. 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. For “use sumif in excel”, the reliable version is a short checking loop, not just the first command that appears to work. Run it on a deliberately small range first, watch how the affected cells change, and only then apply the same setup to the full sheet. 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 is what makes a calculation you can defend to a CFO or an auditor useful in real work: repeatable, auditable, and not dependent on memory or luck.

A worked example

Regions are in A2:A100 and sales in B2:B100. To total only the West sales: =SUMIF(A2:A100, "West", B2:B100). It checks each region, and wherever it equals "West" it adds the matching sales figure, returning say 48200. To sum only sales above 1000 directly, test the number column itself: =SUMIF(B2:B100, ">1000"). SUMIF is the everyday tool for one-condition totals — sales by region, expenses by category, hours by project — without filtering or building a pivot table. If there is any chance you will reuse this, drop it into a small template tab right now: a labelled input area on the left and the formula beside it, checked once against the tool above. Next time the same question comes up, the answer is a single paste away instead of a rebuild from memory.

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. Keep this page bookmarked for the next time the same question comes up. Better still, rebuild the example once in your own sheet — doing it yourself, with the tool above to check against, is what turns a copied formula into a technique you own. Treat “use sumif 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

• Giving range and sum_range different heights, so rows misalign and the wrong cells are added.
• Forgetting the quotes around a comparison — ">100" must be a quoted text string, not >100.
• Reaching for SUMIF when you have two or more conditions; that needs SUMIFS, which takes multiple criteria pairs.

Frequently asked questions