The Hidden Gem of Excel
Excel SUMPRODUCT Function Explained
SUMPRODUCT does more than you think
By Sharanmeet Singh••
Tags:ExcelSUMPRODUCTWeighted AverageFormulas
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SUMPRODUCT Function
The SUMPRODUCT() function multiplies and sums arrays.
Basic Example
=SUMPRODUCT(A2:A5,B2:B5)
Multiplies pairs and sums → weighted total.
Conditional Example
=SUMPRODUCT((A2:A10="East")*(B2:B10))
Sums values where region = East.
Use Cases
- Weighted averages
- Multi-condition sums
- Replacing complex array formulas
Pro Tip: SUMPRODUCT can act as an advanced COUNTIF or SUMIF replacement.