The SUMPRODUCT function returns the sum of the products of corresponding numbers in one or more collections.
SUMPRODUCT(range, range…)
range: A collection of cells. range contains a reference to a single range of cells containing number values or duration values. If all values are duration values, SUMPRODUCT returns a number value. If one and only one cell in range contains a duration value while all others contain number values, SUMPRODUCT will return a duration value. If string values or boolean values are included in range, they are ignored. If date/time values are included in range, SUMPRODUCT will return an error.
range…: Optionally include one or more additional collections of cells. The collections must all have the same dimensions.
Notes
The SUMPRODUCT function multiplies the corresponding numbers in each collection and then sums each of the products. If only one collection is specified, SUMPRODUCT returns the sum of the collection.
Examples |
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Suppose cells B1:E1 contain 1, 2, 3, and 4. Suppose cells B2:E2 contain 2, 4, 6, and 8. =SUMPRODUCT(B1:E1, B2:E2) returns 60, the sum of B1*B2 (2), C1*C2 (8), D1*D2 (18), and E1*E2 (32). =SUMPRODUCT(B1:E1) returns 10 because there is only one collection and the sum of that collection is 10. |