In Excel: select a clean data range, choose Insert ▸ PivotTable, place fields into Rows, Columns, Values and Filters, then refresh when the source data changes.
Grand total: 1,250.50
| Region | Sum |
|---|---|
| West | 125.50 |
| East | 1050 |
| South | 75 |
The same thing in your own sheet
Sum · Excel & Sheets
What this does
A pivot table summarizes a flat data table without writing formulas. Rows and Columns define the groups, Values define the numbers to aggregate, and Filters or slicers narrow the view. It works best when the source has one header row, no blank columns, one record per row and consistent data types. Most people learn this as a sequence of clicks and forget it by next week; learning it as a pattern instead is what lets you apply it to the next, slightly different version of the problem without starting from scratch. That is the difference this page is trying to make. The difference between a quick fix and a sheet you can trust is the extra minute you spend validating “weighted average excel pivot table”. Start on a copy or a tiny sample, keep the affected pivot table 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 data step that keeps your analysis trustworthy, but the practical win is that someone else can open the file and understand what happened without asking you.
A worked example
A sales table has Date, Region, Rep and Revenue columns. Insert a PivotTable, drag Region to Rows and Revenue to Values. Excel returns total revenue by region. Drag Date to Columns and group by Month to turn the same source into a monthly regional summary. Pivot tables are one of the highest-leverage Excel tools for summarizing messy transactional data into totals by customer, region, month, product or owner. 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. Nothing on this page is behind a login: the tool runs entirely in your browser, the formula is shown in full with one-click copy, and the steps work the same on Windows and Mac. That is the whole promise here — the exact answer, a way to prove it on your own numbers, and just enough context to make it stick. Here is the takeaway for “weighted average excel pivot table”: 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
- Using a report layout with merged cells or subtotals as the source.
- Forgetting to refresh after source data changes.
- Letting Excel count a numeric field because one source cell contains text.
- Building formulas beside a pivot table without allowing for the pivot size to change.
Frequently asked questions
What is a pivot table?
It is an interactive summary table that groups and aggregates records from a source table.
Why is my pivot table counting instead of summing?
At least one value in the source field is text or blank in a way that makes Excel treat the field as non-numeric.
How do I update a pivot table?
Right-click the pivot table and choose Refresh, or use Data ▸ Refresh All.