In Excel: use =SUM(range), for example =SUM(A1:A10), or =SUMIF(range, criteria, sum_range) to add only the rows that match a condition.
n = 7 · Sum = 103.00 · Min = 9.00 · Max = 21.00
7 values
Need it as an auditable file?
Ships inside the linked template — formula-driven, unlocked, audit-ready.
What this does
SUM adds every number in the range you give it, ignoring blanks and text so you do not have to clean the column first. It is the most-used function in any spreadsheet because totals are everywhere. When you only want some of the values, SUMIF (one condition) and SUMIFS (several) add just the rows that meet your criteria. 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 “excel sum formula showing 0”. Start on a copy or a tiny sample, keep the affected formula 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 calculation you can defend to a CFO or an auditor, but the practical win is that someone else can open the file and understand what happened without asking you.
A worked example
To total a column of sales in A1:A10, type =SUM(A1:A10). To total only the "North" region, =SUMIF(B1:B10,"North",A1:A10) adds the A-values whose B-cell says North. The AutoSum button (Alt+= on Windows) writes the SUM for you and guesses the range — handy, but always check the highlighted range is right. Every dashboard, invoice and budget ends in a total, which is why SUM — and its conditional cousins SUMIF and SUMIFS — is the first function worth mastering. Get it right and the rest of the sheet builds on solid ground. 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
Everything above works in Google Sheets too. Excel and Sheets share the formula syntax used here; only the surrounding menus are arranged differently. That portability is deliberate — learn it once and it follows you between the two tools and across Windows and Mac. 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 “excel sum formula showing 0” 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
- Letting AutoSum guess a range that misses the top or bottom row — always check the outline.
- Summing a column that includes its own total cell, creating a circular reference.
- Expecting
SUMto add text numbers — values stored as text are skipped silently. - Using
SUMIFwhen you need several conditions; reach forSUMIFSinstead.
Frequently asked questions
SUM vs AutoSum?
AutoSum is just a button that writes a SUM formula for the range it guesses. The formula is identical; AutoSum only saves typing.
How do I sum with a condition?
Use SUMIF for one condition (=SUMIF(range, ">100")) or SUMIFS for several criteria across different columns.
Why does SUM ignore some cells?
SUM only adds numbers; cells holding text, including numbers stored as text, are skipped. Convert them with VALUE or by multiplying by 1.