Adds the cells specified by a given criteria.
Syntax
SUMIF(range,criteria,sum_range)
Range is the range of cells that you want evaluated by criteria.
Criteria is the criteria in the form of a number, expression, or text that defines which cells will be added. For example, criteria can be expressed as 32, "32", ">32", or "apples".
Sum_range are the actual cells to add if their corresponding cells in range match criteria. If sum_range is omitted, the cells in range are both evaluated by criteria and added if they match criteria.
Remarks
 Sum_range does not have to be the same size and shape as range. The actual cells that are added are determined by using the top, left cell in sum_range as the beginning cell, and then including cells that correspond in size and shape to range. For example:
If range is 
And sum_range is 
Then the actual cells are 
A1:A5 
B1:B5 
B1:B5 
A1:A5 
B1:B3 
B1:B5 
A1:B4 
C1:D4 
C1:D4 
A1:B4 
C1:C2 
C1:D4 
 You can use the wildcard characters, question mark (?) and asterisk (*), in criteria. A question mark matches any single character; an asterisk matches any sequence of characters. If you want to find an actual question mark or asterisk, type a tilde (~) preceding the character.
 Microsoft Office Excel provides additional functions that you can use to analyze your data based on a condition or criteria:
 To count the number of occurrences of a string of text or a number within a range of cells, use the COUNTIF function.
 To have a formula return one of two values based on a condition, such as a sales bonus based on a specified sales amount, use the IF function.
 To analyze data in a list based on criteria, such as profit margins or product types, use the database and list management functions (DAVERAGE, DCOUNT, DCOUNTA, DGET, DMAX, DMIN, DPRODUCT, DSTDEV, DSTDEVP, DSUM, DVAR, and DVARP).
Example
The example may be easier to understand if you copy it to a blank worksheet.
How to copy an example
 Create a blank workbook or worksheet.
 Select the example in the Help topic.
Note Do not select the row or column headers.
Selecting an example from Help
 Press CTRL+C.
 In the worksheet, select cell A1, and press CTRL+V.
 To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

A 
B 
Property Value 
Commission 
100,000 
7,000 
200,000 
14,000 
300,000 
21,000 
400,000 
28,000 
Formula 
Description (Result) 
=SUMIF(A2:A5,">160000",B2:B5) 
Sum of the commissions for property values over 160000 (63,000) 
=SUMIF(A2:A5,">160000") 
Sum of the property values over 160000 (900,000) 
=SUMIF(A2:A5,"=300000",B2:B3) 
Sum of the commissions for property values over 160000 (21,000) 
